| Date | Country | Holiday name |
|---|---|---|
| 1958-04-01 |  Cyprus | Cyprus National Day |
| 1958-04-01 |  Iran | Islamic Republic Day |
| 1958-04-01 |  San Marino | Inauguration Ceremony |
| 1958-04-02 |  Argentina | Day of the veterans and the fallen in Malvinas War |
| 1958-04-02 | Iran | Sizdah Bedar |
| 1958-04-03 | Argentina | Maundy Thursday |
| 1958-04-03 |  Colombia | Maundy Thursday |
| 1958-04-03 |  Costa Rica | Maundy Thursday |
| 1958-04-03 |  Denmark | Maundy Thursday |
| 1958-04-03 |  Ecuador | Maundy Thursday |
| 1958-04-03 |  Spain | Maundy Thursday |
| 1958-04-03 |  Faroe Islands | Maundy Thursday |
| 1958-04-03 |  Greenland | Maundy Thursday |
| 1958-04-03 |  Guinea | National Holiday |
| 1958-04-03 |  Guatemala | Maundy Thursday |
| 1958-04-03 |  Honduras | Maundy Thursday |
| 1958-04-03 | Canary Islands | Maundy Thursday |
| 1958-04-03 |  Iceland | Maundy Thursday |
| 1958-04-03 |  Nicaragua | Maundy Thursday |
| 1958-04-03 |  Norway | Maundy Thursday |
| 1958-04-03 |  Peru | Maundy Thursday |
| 1958-04-03 |  Philippines | Maundy Thursday |
| 1958-04-03 |  Paraguay | Maundy Thursday |
| 1958-04-03 |  Svalbard & Jan Mayen | Maundy Thursday |
| 1958-04-03 |  El Salvador | Maundy Thursday |
| 1958-04-03 |  Uruguay | Maundy Thursday |
| 1958-04-03 |  Venezuela | Maundy Thursday |
| 1958-04-03 |  U.S. Virgin Islands | Maundy Thursday |
| 1958-04-04 |  Andorra | Good Friday |
| 1958-04-04 |  Antigua & Barbuda | Good Friday |
| 1958-04-04 |  Anguilla | Good Friday |
| 1958-04-04 |  Angola | Peace Day |
| 1958-04-04 | Angola | Good Friday |
| 1958-04-04 | Argentina | Good Friday |
| 1958-04-04 |  Australia | Good Friday |
| 1958-04-04 |  Aruba | Good Friday |
| 1958-04-04 |  Åland Islands | Good Friday |
| 1958-04-04 |  Barbados | Good Friday |
| 1958-04-04 |  Bermuda | Good Friday |
| 1958-04-04 |  Bolivia | Good Friday |
| 1958-04-04 |  Caribbean Netherlands | Good Friday |
| 1958-04-04 |  Brazil | Good Friday |
| 1958-04-04 |  Bahamas | Good Friday |
| 1958-04-04 |  Botswana | Good Friday |
| 1958-04-04 |  Belize | Good Friday |
| 1958-04-04 |  Canada | Good Friday |
| 1958-04-04 |  Switzerland | Good Friday |
| 1958-04-04 |  Cook Islands | Good Friday |
| 1958-04-04 |  Chile | Good Friday |
| 1958-04-04 |  Cameroon | Good Friday |
| 1958-04-04 | Colombia | Good Friday |
| 1958-04-04 | Costa Rica | Good Friday |
| 1958-04-04 |  Cuba | Good Friday |
| 1958-04-04 |  Cape Verde | Good Friday |
| 1958-04-04 |  Curaçao | Good Friday |
| 1958-04-04 |  Christmas Island | Good Friday |
| 1958-04-04 |  Czech Republic | Good Friday |
| 1958-04-04 |  Germany | Good Friday |
| 1958-04-04 | Denmark | Good Friday |
| 1958-04-04 |  Dominica | Good Friday |
| 1958-04-04 |  Dominican Republic | Good Friday |
| 1958-04-04 | Ecuador | Good Friday |
| 1958-04-04 |  Estonia | Good Friday |
| 1958-04-04 | Spain | Good Friday |
| 1958-04-04 |  Finland | Good Friday |
| 1958-04-04 |  Fiji | Good Friday |
| 1958-04-04 | Faroe Islands | Good Friday |
| 1958-04-04 |  United Kingdom | Good Friday |
| 1958-04-04 |  Grenada | Good Friday |
| 1958-04-04 |  Guernsey | Good Friday |
| 1958-04-04 |  Ghana | Good Friday |
| 1958-04-04 |  Gibraltar | Good Friday |
| 1958-04-04 | Greenland | Good Friday |
| 1958-04-04 |  The Gambia | Good Friday |
| 1958-04-04 |  Guadeloupe | Good Friday |
| 1958-04-04 |  Republic of Equatorial Guinea | Good Friday |
| 1958-04-04 | Guatemala | Good Friday |
| 1958-04-04 |  Guyana | Good Friday |
| 1958-04-04 |  Hong Kong | Good Friday |
| 1958-04-04 | Honduras | Good Friday |
| 1958-04-04 |  Haiti | Good Friday |
| 1958-04-04 | Canary Islands | Good Friday |
| 1958-04-04 |  Indonesia | Good Friday |
| 1958-04-04 |  Isle of Man | Good Friday |
| 1958-04-04 | Iceland | Good Friday |
| 1958-04-04 |  Jersey | Good Friday |
| 1958-04-04 |  Jamaica | Good Friday |
| 1958-04-04 |  Kenya | Good Friday |
| 1958-04-04 |  St. Kitts & Nevis | Good Friday |
| 1958-04-04 |  Cayman Islands | Good Friday |
| 1958-04-04 |  St. Lucia | Good Friday |
| 1958-04-04 |  Lichtenstein | Good Friday |
| 1958-04-04 |  Lesotho | Good Friday |
| 1958-04-04 |  Latvia | Good Friday |
| 1958-04-04 |  Montenegro | Good Friday |
| 1958-04-04 |  Martinique | Good Friday |
| 1958-04-04 |  Montserrat | Good Friday |
| 1958-04-04 |  Malta | Good Friday |
| 1958-04-04 |  Malawi | Good Friday |
| 1958-04-04 |  Malaysia | Good Friday |
| 1958-04-04 |  Namibia | Good Friday |
| 1958-04-04 |  Nigeria | Good Friday |
| 1958-04-04 | Nicaragua | Good Friday |
| 1958-04-04 | Norway | Good Friday |
| 1958-04-04 |  New Zealand | Good Friday |
| 1958-04-04 |  Panama | Good Friday |
| 1958-04-04 | Peru | Good Friday |
| 1958-04-04 | Philippines | Good Friday |
| 1958-04-04 |  Portugal | Good Friday |
| 1958-04-04 | Paraguay | Good Friday |
| 1958-04-04 |  Rwanda | Good Friday |
| 1958-04-04 |  Seychelles | Good Friday |
| 1958-04-04 |  Sweden | Good Friday |
| 1958-04-04 |  Singapore | Good Friday |
| 1958-04-04 |  St. Helena | Good Friday |
| 1958-04-04 | Svalbard & Jan Mayen | Good Friday |
| 1958-04-04 |  Slovakia | Good Friday |
| 1958-04-04 |  Sierra Leone | Good Friday |
| 1958-04-04 |  Senegal | National Holiday |
| 1958-04-04 |  Suriname | Good Friday |
| 1958-04-04 | El Salvador | Good Friday |
| 1958-04-04 |  Sint Maarten | Good Friday |
| 1958-04-04 |  Swaziland | Good Friday |
| 1958-04-04 |  Turks & Caicos Islands | Good Friday |
| 1958-04-04 |  Tonga | Good Friday |
| 1958-04-04 |  Trinidad & Tobago | Good Friday |
| 1958-04-04 |  Taiwan | Children's Day |
| 1958-04-04 |  Tanzania | Good Friday |
| 1958-04-04 |  Uganda | Good Friday |
| 1958-04-04 | Uruguay | Good Friday |
| 1958-04-04 |  St. Vincent & Grenadines | Good Friday |
| 1958-04-04 | Venezuela | Good Friday |
| 1958-04-04 |  British Virgin Islands | Good Friday |
| 1958-04-04 | U.S. Virgin Islands | Good Friday |
| 1958-04-04 |  Vanuatu | Good Friday |
| 1958-04-04 |  South Africa | Good Friday |
| 1958-04-04 |  Zambia | Good Friday |
| 1958-04-04 |  Zimbabwe | Good Friday |
| 1958-04-04 |  United States of America | Good Friday (KY) |
| 1958-04-05 | Australia | Easter Saturday |
| 1958-04-05 | Botswana | Easter Saturday |
| 1958-04-05 | Belize | Easter Saturday |
| 1958-04-05 |  China | Qingming Festival |
| 1958-04-05 | Fiji | Easter Saturday |
| 1958-04-05 | Guatemala | Easter Saturday |
| 1958-04-05 | Hong Kong | Easter Saturday |
| 1958-04-05 | Hong Kong | Qingming Festival |
| 1958-04-05 | Seychelles | Easter Saturday |
| 1958-04-05 | El Salvador | Easter Saturday |
| 1958-04-05 | Taiwan | Tomb Sweeping Day |
| 1958-04-06 | Andorra | Easter Sunday |
| 1958-04-06 |  Albania | Catholic Easter |
| 1958-04-06 |  Austria | Easter Sunday |
| 1958-04-06 | Australia | Easter Sunday |
| 1958-04-06 |  Bosnia and Herzegovina | Easter Sunday |
| 1958-04-06 |  Burkina Faso | Easter Sunday |
| 1958-04-06 |  Burundi | Ntaryamira Day |
| 1958-04-06 | Canada | Easter Sunday |
| 1958-04-06 |  Cocos (Keeling) Islands | Self Determination Day |
| 1958-04-06 | Switzerland | Easter Sunday |
| 1958-04-06 | Chile | Easter Sunday |
| 1958-04-06 | Colombia | Easter Sunday |
| 1958-04-06 | Denmark | Easter Sunday |
| 1958-04-06 | Estonia | Easter Sunday |
| 1958-04-06 | Finland | Easter Sunday |
| 1958-04-06 | Faroe Islands | Easter Sunday |
| 1958-04-06 | Greenland | Easter Sunday |
| 1958-04-06 | Hong Kong | Easter Sunday |
| 1958-04-06 |  Croatia | Easter Sunday |
| 1958-04-06 | Haiti | Easter Sunday |
| 1958-04-06 |  Hungary | Easter Sunday |
| 1958-04-06 |  Ireland | Easter Sunday |
| 1958-04-06 | Iceland | Easter Sunday |
| 1958-04-06 |  Italia | Easter Sunday |
| 1958-04-06 | Kenya | Easter Sunday |
| 1958-04-06 |  Lithuania | Easter Sunday |
| 1958-04-06 | Latvia | Easter Sunday |
| 1958-04-06 | Montenegro | Easter Sunday |
| 1958-04-06 |  Madagascar | Easter Sunday |
| 1958-04-06 |  Netherlands | Easter Sunday |
| 1958-04-06 | Norway | Easter Sunday |
| 1958-04-06 | Peru | Easter Sunday |
| 1958-04-06 | Philippines | Easter Sunday |
| 1958-04-06 |  Poland | Easter Sunday |
| 1958-04-06 | Portugal | Easter Sunday |
| 1958-04-06 | Seychelles | Easter Sunday |
| 1958-04-06 |  Slovenia | Easter Sunday |
| 1958-04-06 | Svalbard & Jan Mayen | Easter Sunday |
| 1958-04-06 | San Marino | Easter Sunday |
| 1958-04-06 | Sint Maarten | Easter Sunday |
| 1958-04-06 |  Thailand | Chakri Memorial Day |
| 1958-04-06 | Trinidad & Tobago | Easter Sunday |
| 1958-04-06 | Uganda | Easter Sunday |
| 1958-04-06 | Venezuela | Easter Sunday |
| 1958-04-06 |  Kosovo | Easter Sunday |
| 1958-04-07 | Andorra | Easter Monday |
| 1958-04-07 | Antigua & Barbuda | Easter Monday |
| 1958-04-07 | Anguilla | Easter Monday |
| 1958-04-07 | Albania | Catholic Easter |
| 1958-04-07 | Austria | Easter Monday |
| 1958-04-07 | Australia | Easter Monday |
| 1958-04-07 | Aruba | Easter Monday |
| 1958-04-07 | Åland Islands | Easter Monday |
| 1958-04-07 | Bosnia and Herzegovina | Easter Monday |
| 1958-04-07 | Barbados | Easter Monday |
| 1958-04-07 |  Belgium | Easter Monday |
| 1958-04-07 | Burkina Faso | Easter Monday |
| 1958-04-07 |  Benin | Easter Monday |
| 1958-04-07 |  St. Barths | Easter Monday |
| 1958-04-07 | Caribbean Netherlands | Easter Monday |
| 1958-04-07 | Bahamas | Easter Monday |
| 1958-04-07 | Botswana | Easter Monday |
| 1958-04-07 | Belize | Easter Monday |
| 1958-04-07 | Canada | Easter Monday |
| 1958-04-07 | Cocos (Keeling) Islands | Easter Monday |
| 1958-04-07 |  Central African Republic | Easter Monday |
| 1958-04-07 |  Republic of the Congo | Easter Monday |
| 1958-04-07 | Switzerland | Easter Monday |
| 1958-04-07 |  Republic of Côte d'Ivoire | Easter Monday |
| 1958-04-07 | Cook Islands | Easter Monday |
| 1958-04-07 | Curaçao | Easter Monday |
| 1958-04-07 | Czech Republic | Easter Monday |
| 1958-04-07 | Germany | Easter Monday |
| 1958-04-07 | Denmark | Easter Monday |
| 1958-04-07 | Dominica | Easter Monday |
| 1958-04-07 | Spain | Easter Monday |
| 1958-04-07 | Finland | Easter Monday |
| 1958-04-07 | Fiji | Easter Monday |
| 1958-04-07 | Faroe Islands | Easter Monday |
| 1958-04-07 |  France | Easter Monday |
| 1958-04-07 |  Gabon | Easter Monday |
| 1958-04-07 | United Kingdom | Easter Monday |
| 1958-04-07 | Grenada | Easter Monday |
| 1958-04-07 |  French Guiana | Easter Monday |
| 1958-04-07 | Guernsey | Easter Monday |
| 1958-04-07 | Ghana | Easter Monday |
| 1958-04-07 | Gibraltar | Easter Monday |
| 1958-04-07 | Greenland | Easter Monday |
| 1958-04-07 | The Gambia | Easter Monday |
| 1958-04-07 | Guinea | Easter Monday |
| 1958-04-07 | Guadeloupe | Easter Monday |
| 1958-04-07 | Guyana | Easter Monday |
| 1958-04-07 | Hong Kong | Easter Monday |
| 1958-04-07 | Croatia | Easter Monday |
| 1958-04-07 | Hungary | Easter Monday |
| 1958-04-07 | Ireland | Easter Monday |
| 1958-04-07 | Isle of Man | Easter Monday |
| 1958-04-07 | Iceland | Easter Monday |
| 1958-04-07 | Italia | Easter Monday |
| 1958-04-07 | Jersey | Easter Monday |
| 1958-04-07 | Jamaica | Easter Monday |
| 1958-04-07 | Kenya | Easter Monday |
| 1958-04-07 | St. Kitts & Nevis | Easter Monday |
| 1958-04-07 | Cayman Islands | Easter Monday |
| 1958-04-07 | St. Lucia | Easter Monday |
| 1958-04-07 | Lichtenstein | Easter Monday |
| 1958-04-07 | Lesotho | Easter Monday |
| 1958-04-07 | Lithuania | Easter Monday |
| 1958-04-07 |  Luxembourg | Easter Monday |
| 1958-04-07 | Latvia | Easter Monday |
| 1958-04-07 |  Monaco | Easter Monday |
| 1958-04-07 | Montenegro | Easter Sunday |
| 1958-04-07 |  St. Martin | Easter Monday |
| 1958-04-07 | Madagascar | Easter Monday |
| 1958-04-07 |  Republic of Mali | Easter Monday |
| 1958-04-07 | Martinique | Easter Monday |
| 1958-04-07 | Montserrat | Easter Monday |
| 1958-04-07 | Malawi | Easter Monday |
| 1958-04-07 |  Mozambique | Women’s Day |
| 1958-04-07 | Namibia | Easter Monday |
| 1958-04-07 |  New Caledonia | Easter Monday |
| 1958-04-07 |  Republic of the Niger | Easter Monday |
| 1958-04-07 | Nigeria | Easter Monday |
| 1958-04-07 | Netherlands | Easter Monday |
| 1958-04-07 | Norway | Easter Monday |
| 1958-04-07 | New Zealand | Easter Monday |
| 1958-04-07 | Poland | Easter Monday |
| 1958-04-07 |  St. Pierre & Miquelon | Easter Monday |
| 1958-04-07 |  Réunion | Easter Monday |
| 1958-04-07 | Rwanda | Genocide Memorial Day |
| 1958-04-07 | Rwanda | Easter Monday |
| 1958-04-07 | Seychelles | Easter Monday |
| 1958-04-07 | Sweden | Easter Monday |
| 1958-04-07 | St. Helena | Easter Monday |
| 1958-04-07 | Slovenia | Easter Monday |
| 1958-04-07 | Svalbard & Jan Mayen | Easter Monday |
| 1958-04-07 | Slovakia | Easter Monday |
| 1958-04-07 | Sierra Leone | Easter Monday |
| 1958-04-07 | San Marino | Easter Monday |
| 1958-04-07 | Senegal | Easter Monday |
| 1958-04-07 | Suriname | Easter Monday |
| 1958-04-07 | Sint Maarten | Easter Monday |
| 1958-04-07 | Swaziland | Easter Monday |
| 1958-04-07 | Turks & Caicos Islands | Easter Monday |
| 1958-04-07 |  Chad | Easter Monday |
| 1958-04-07 |  Togolese Republic | Easter Monday |
| 1958-04-07 | Tonga | Easter Monday |
| 1958-04-07 | Tanzania | Karume Day |
| 1958-04-07 | Tanzania | Easter Monday |
| 1958-04-07 | Uganda | Easter Monday |
| 1958-04-07 |  Vatican City | Easter Monday |
| 1958-04-07 | St. Vincent & Grenadines | Easter Monday |
| 1958-04-07 | British Virgin Islands | Easter Monday |
| 1958-04-07 | U.S. Virgin Islands | Easter Monday |
| 1958-04-07 | Vanuatu | Easter Monday |
| 1958-04-07 |  Mayotte | Easter Monday |
| 1958-04-07 | South Africa | Family Day |
| 1958-04-07 | Zambia | Easter Monday |
| 1958-04-07 | Zimbabwe | Easter Monday |
| 1958-04-08 | New Zealand | Provincial anniversary day |
| 1958-04-09 |  Georgia | National Unity Day |
| 1958-04-09 | Philippines | Day of Valor |
| 1958-04-09 |  Tunisia | عيد الشهداء |
| 1958-04-09 | Kosovo | Constitution Day |
| 1958-04-10 | Switzerland | Näfelser Fahrt |
| 1958-04-11 |  Bulgaria | Good Friday |
| 1958-04-11 | Costa Rica | Gesta Heroica de Juan Santamaría |
| 1958-04-11 | Cyprus | Good Friday |
| 1958-04-11 |  Eritrea | Orthodox Good Friday |
| 1958-04-11 |  Ethiopia | Good Friday |
| 1958-04-11 | Georgia | Good Friday |
| 1958-04-11 |  Greece | Good Friday |
| 1958-04-11 |  Liberia | Fast and Prayer Day |
| 1958-04-11 | Montenegro | Good Friday |
| 1958-04-11 |  Romania | Good Friday |
| 1958-04-11 |  Serbia | Orthodox Good Friday |
| 1958-04-12 | Georgia | Easter Saturday |
| 1958-04-13 | Albania | Orthodox Easter |
| 1958-04-13 | Bosnia and Herzegovina | Orthodox Easter |
| 1958-04-13 | Bulgaria | Easter Sunday |
| 1958-04-13 | Cyprus | Easter Sunday |
| 1958-04-13 | Eritrea | Orthodox Easter |
| 1958-04-13 | Ethiopia | Easter Sunday |
| 1958-04-13 | Georgia | Easter Sunday |
| 1958-04-13 | Greece | Easter Sunday |
| 1958-04-13 |  Moldova | Easter Sunday |
| 1958-04-13 | Montenegro | Easter Sunday |
| 1958-04-13 |  Macedonia | Orthodox Easter |
| 1958-04-13 | Romania | Easter Sunday |
| 1958-04-13 | Serbia | Orthodox Easter |
| 1958-04-13 |  Sudan | Coptic Easter |
| 1958-04-13 | Thailand | Songkran Festival |
| 1958-04-13 |  Ukraine | Orthodox Easter |
| 1958-04-13 | Kosovo | Orthodox Easter |
| 1958-04-14 | Albania | Orthodox Easter |
| 1958-04-14 |  People's Republic of Bangladesh | Bengali New Year's Day |
| 1958-04-14 | Bulgaria | Easter Monday |
| 1958-04-14 | Cyprus | Easter Monday |
| 1958-04-14 |  Egypt | Sham El Nessim |
| 1958-04-14 | Georgia | Easter Monday |
| 1958-04-14 | Greece | Easter Monday |
| 1958-04-14 | Honduras | Día de las Américas |
| 1958-04-14 | Moldova | Easter Monday |
| 1958-04-14 | Macedonia | Orthodox Easter Monday |
| 1958-04-14 | Romania | Easter Monday |
| 1958-04-14 | Serbia | Orthodox Easter Monday |
| 1958-04-14 | Thailand | Songkran Festival |
| 1958-04-14 | Ukraine | Orthodox Easter |
| 1958-04-15 | Bolivia | Tarija Day |
| 1958-04-15 | Malaysia | Declaration of Malacca City as Historical City |
| 1958-04-15 | Thailand | Songkran Festival |
| 1958-04-16 |  Puerto Rico | Birthday of José de Diego |
| 1958-04-16 | United States of America | Emancipation Day |
| 1958-04-17 |  American Samoa | American Samoa Flag Day |
| 1958-04-17 | Gabon | Women's Day |
| 1958-04-18 | Zimbabwe | Independence Day |
| 1958-04-19 | Swaziland | Birthday of King Mswati III |
| 1958-04-19 | Venezuela | Declaration of Independence |
| 1958-04-20 |  Jordan | Eid al-Fitr (estimated) |
| 1958-04-20 |  Kuwait | Eid al-Fitr (estimated) |
| 1958-04-20 |  Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 1958-04-21 | Brazil | Tiradentes' Day |
| 1958-04-21 | Brazil | Fundação de Brasília (DF) |
| 1958-04-21 | Brazil | Data magna do estado (MG) |
| 1958-04-21 | Moldova | Memorial Day |
| 1958-04-21 | St. Helena | Queen's Birthday |
| 1958-04-21 | Swaziland | Birthday of King Mswati III (substitute day) |
| 1958-04-21 | United States of America | Patriots' Day (MA) |
| 1958-04-21 | Jordan | Eid al-Fitr Holiday (estimated) |
| 1958-04-21 | Kuwait | Eid al-Fitr Holiday (estimated) |
| 1958-04-21 | Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 1958-04-22 |  Belarus | Commemoration Day |
| 1958-04-22 | Jordan | Eid al-Fitr Holiday (estimated) |
| 1958-04-22 | Kuwait | Eid al-Fitr Holiday (estimated) |
| 1958-04-22 | Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 1958-04-23 | Spain | Día de Aragón (AR) |
| 1958-04-23 | Spain | Fiesta de Castilla y León (CL) |
| 1958-04-23 |  Turkey | National Sovereignty and Children's Day |
| 1958-04-23 | Saudi Arabia | Eid al-Fitr Holiday (estimated) |
| 1958-04-24 |  Armenia | Mother's Day |
| 1958-04-24 | Faroe Islands | Flag Day |
| 1958-04-24 | Iceland | First Day of Summer |
| 1958-04-24 | Republic of the Niger | Concord Day |
| 1958-04-25 | Australia | Anzac Day |
| 1958-04-25 | Cocos (Keeling) Islands | Anzac Day |
| 1958-04-25 | Cook Islands | Anzac Day |
| 1958-04-25 | Christmas Island | Anzac Day |
| 1958-04-25 | Egypt | Sinai Liberation Day |
| 1958-04-25 | Italia | Liberation Day |
| 1958-04-25 | New Zealand | ANZAC Day |
| 1958-04-25 | Portugal | Liberty Day |
| 1958-04-25 | Swaziland | National Flag Day |
| 1958-04-25 | Tonga | ANZAC Day |
| 1958-04-25 | United States of America | Arbor Day |
| 1958-04-26 | Malaysia | Sultan of Terengganu's Birthday |
| 1958-04-26 | Tanzania | Union Day |
| 1958-04-27 | Aruba | Kings Day |
| 1958-04-27 | Caribbean Netherlands | Kings Day |
| 1958-04-27 | Curaçao | Kings Day |
| 1958-04-27 | France | Abolition of Slavery |
| 1958-04-27 | Slovenia | Day of Uprising Against Occupation |
| 1958-04-27 | Sierra Leone | Independence Day |
| 1958-04-27 | Sint Maarten | King's Day |
| 1958-04-27 | Togolese Republic | Independence Day |
| 1958-04-27 | Mayotte | Abolition of Slavery |
| 1958-04-27 | South Africa | Freedom Day |
| 1958-04-28 | Barbados | National Heroes Day |
| 1958-04-28 | Gibraltar | Workers Memorial Day |
| 1958-04-28 | Sierra Leone | Independence Day (substitute day) |
| 1958-04-28 | United States of America | Confederate Memorial Day |
| 1958-04-28 |  Vietnam | Hung Kings Commemorations |
| 1958-04-28 | South Africa | Public Holiday |
| 1958-04-29 |  Japan | Emperor's Birthday |
| 1958-04-30 | Caribbean Netherlands | Rincon Day |
| 1958-04-30 | Netherlands | Queen's Day |
| 1958-04-30 | Sint Maarten | Carnival |
| 1958-04-30 | Vietnam | Day of liberating the South for national reunification |
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