| Date | Country | Holiday name |
|---|---|---|
| 2009-08-01 |  Andorra | Andorra La Vella Festival |
| 2009-08-01 |  Antigua & Barbuda | J'Ouvert Morning |
| 2009-08-01 |  Barbados | Emancipation Day |
| 2009-08-01 |  Benin | Independence Day |
| 2009-08-01 |  Caribbean Netherlands | Emancipation Day |
| 2009-08-01 |  Democratic Republic of the Congo | Parents' Day |
| 2009-08-01 |  Switzerland | Bundesfeiertag |
| 2009-08-01 | Switzerland | Fête nationale (JU) |
| 2009-08-01 | Switzerland | Giorno festivo federale (TI) |
| 2009-08-01 |  Guyana | Emancipation Day |
| 2009-08-01 |  Jamaica | Emancipation Day |
| 2009-08-01 |  St. Lucia | Emancipation Day |
| 2009-08-01 |  Trinidad & Tobago | Emancipation Day |
| 2009-08-01 |  St. Vincent & Grenadines | Emancipation Day |
| 2009-08-01 |  China | Army Day |
| 2009-08-02 | Antigua & Barbuda | Last Lap |
| 2009-08-02 |  Costa Rica | Our Lady of Los Ángeles |
| 2009-08-02 |  Macedonia | Day of the Republic |
| 2009-08-03 |  Anguilla | August Monday |
| 2009-08-03 |  Australia | Picnic Day (NT) |
| 2009-08-03 | Barbados | Kadooment Day |
| 2009-08-03 | Caribbean Netherlands | Carnival Monday |
| 2009-08-03 |  Bahamas | Emancipation Day |
| 2009-08-03 |  Canada | Civic Holiday |
| 2009-08-03 | Canada | New Brunswick Day (NB) |
| 2009-08-03 | Canada | Natal Day (NS) |
| 2009-08-03 |  Dominica | Emancipation Day |
| 2009-08-03 |  United Kingdom | Summer bank holiday |
| 2009-08-03 |  Grenada | Emancipation Day |
| 2009-08-03 |  Republic of Equatorial Guinea | Armed Forces Day |
| 2009-08-03 |  Guinea-Bissau | Pidjiguiti Day |
| 2009-08-03 |  Ireland | First Monday in August |
| 2009-08-03 |  Iceland | Commerce Day |
| 2009-08-03 |  St. Kitts & Nevis | Emancipation Day |
| 2009-08-03 | Macedonia | Day of the Republic (substitute day) |
| 2009-08-03 |  Montserrat | Emancipation Day |
| 2009-08-03 |  Republic of the Niger | Independence Day |
| 2009-08-03 |  El Salvador | Fiestas Agostinas |
| 2009-08-03 |  Turks & Caicos Islands | Emancipation Day |
| 2009-08-03 |  British Virgin Islands | Emancipation Monday |
| 2009-08-03 |  Zambia | Farmers' Day |
| 2009-08-04 |  Cook Islands | Constitution Day |
| 2009-08-04 |  Ghana | Founders Day |
| 2009-08-04 | St. Kitts & Nevis | Culturama Day |
| 2009-08-04 | British Virgin Islands | Emancipation Tuesday |
| 2009-08-05 |  Burkina Faso | Independence Day |
| 2009-08-05 |  Brazil | Nossa Senhora das Neves |
| 2009-08-05 |  Spain | Nuestra Señora de África (CE) |
| 2009-08-05 | Spain | Nuestra Señora de las Nieves (CN) |
| 2009-08-05 |  Croatia | Victory and Homeland Thanksgiving Day and the Day of Croatian defenders |
| 2009-08-05 | Canary Islands | Nuestra Señora de las Nieves |
| 2009-08-05 | El Salvador | Fiestas Agostinas |
| 2009-08-05 | British Virgin Islands | Emancipation Wednesday |
| 2009-08-05 |  Pakistan | Raksha Bandhan |
| 2009-08-06 | Anguilla | August Thursday |
| 2009-08-06 |  Bolivia | Independence Day |
| 2009-08-06 | Jamaica | Independence Day |
| 2009-08-06 | El Salvador | Celebración del Divino Salvador del Mundo |
| 2009-08-06 |  Iran | Birthday of Imam Mahdi |
| 2009-08-07 | Anguilla | Constitution Day |
| 2009-08-07 |  Republic of Côte d'Ivoire | Independence Day |
| 2009-08-07 |  Colombia | Battle of Boyacá |
| 2009-08-07 |  Rwanda | National Harvest Day |
| 2009-08-08 |  Germany | Augsburg Peace Festival |
| 2009-08-08 |  Tanzania | Nane Nane Day |
| 2009-08-09 |  Singapore | National Day |
| 2009-08-09 |  Suriname | Indigenous People's Day |
| 2009-08-09 |  South Africa | National Women's Day |
| 2009-08-10 |  Ecuador | Declaration of Independence of Quito |
| 2009-08-10 | Grenada | Carnival Monday |
| 2009-08-10 | Singapore | National Day (substitute day) |
| 2009-08-10 |  United States of America | Victory Day |
| 2009-08-10 | South Africa | Public Holiday |
| 2009-08-10 |  Zimbabwe | Heroes' Day |
| 2009-08-11 | Grenada | Carnival Tuesday |
| 2009-08-11 |  Chad | Independence Day |
| 2009-08-11 | Zimbabwe | Defence Forces Day |
| 2009-08-12 |  Thailand | The Queen Mother's Birthday |
| 2009-08-13 |  Central African Republic | Independence Day |
| 2009-08-13 |  Tunisia | عيد المرأة |
| 2009-08-14 |  Kingdom of Morocco | Anniversary of the Recovery Oued Ed-Dahab |
| 2009-08-14 |  St. Helena | Anniversary Day |
| 2009-08-14 | Pakistan | Independence Day |
| 2009-08-14 | Pakistan | Janmashtami |
| 2009-08-15 | Andorra | Assumption |
| 2009-08-15 |  Austria | Assumption |
| 2009-08-15 |  Bosnia and Herzegovina | Assumption |
| 2009-08-15 |  People's Republic of Bangladesh | National Mourning Day |
| 2009-08-15 |  Belgium | Assumption |
| 2009-08-15 | Burkina Faso | Assumption |
| 2009-08-15 |  Burundi | Assumption |
| 2009-08-15 | Benin | Assumption |
| 2009-08-15 |  St. Barths | Assumption |
| 2009-08-15 | Brazil | Assumption (MG) |
| 2009-08-15 | Brazil | Adesão do Grão-Pará à independência do Brasil (PA) |
| 2009-08-15 | Central African Republic | Assumption |
| 2009-08-15 |  Republic of the Congo | Assumption |
| 2009-08-15 | Switzerland | Assumption |
| 2009-08-15 | Republic of Côte d'Ivoire | Assumption |
| 2009-08-15 |  Chile | Assumption |
| 2009-08-15 |  Cameroon | Assumption |
| 2009-08-15 | Costa Rica | Mother's Day |
| 2009-08-15 |  Cape Verde | Assumption |
| 2009-08-15 |  Cyprus | Assumption |
| 2009-08-15 | Germany | Assumption |
| 2009-08-15 | Spain | Assumption |
| 2009-08-15 |  France | Assumption |
| 2009-08-15 |  Gabon | Assumption |
| 2009-08-15 |  French Guiana | Assumption |
| 2009-08-15 |  The Gambia | Assumption |
| 2009-08-15 |  Guinea | Assumption |
| 2009-08-15 |  Guadeloupe | Assumption |
| 2009-08-15 | Republic of Equatorial Guinea | Constitution Day |
| 2009-08-15 |  Greece | Assumption |
| 2009-08-15 | Croatia | Assumption |
| 2009-08-15 |  Haiti | Assumption |
| 2009-08-15 | Canary Islands | Assumption |
| 2009-08-15 |  Italia | Assumption |
| 2009-08-15 |  South Korea | Liberation Day |
| 2009-08-15 |  Lithuania | Assumption |
| 2009-08-15 |  Luxembourg | Assumption |
| 2009-08-15 |  Monaco | Assumption |
| 2009-08-15 |  St. Martin | Assumption |
| 2009-08-15 |  Madagascar | Assumption |
| 2009-08-15 |  Martinique | Assumption |
| 2009-08-15 |  Malta | Assumption |
| 2009-08-15 |  New Caledonia | Assumption |
| 2009-08-15 |  Poland | Assumption |
| 2009-08-15 |  St. Pierre & Miquelon | Assumption |
| 2009-08-15 |  Portugal | Assumption |
| 2009-08-15 |  Paraguay | Assumption |
| 2009-08-15 |  Réunion | Assumption |
| 2009-08-15 |  Romania | Assumption |
| 2009-08-15 | Rwanda | Assumption |
| 2009-08-15 |  Seychelles | Assumption |
| 2009-08-15 |  Slovenia | Assumption |
| 2009-08-15 |  San Marino | Assumption |
| 2009-08-15 |  Senegal | Assumption |
| 2009-08-15 |  Togolese Republic | Assumption |
| 2009-08-15 |  Vatican City | Assumption |
| 2009-08-15 |  Venezuela | Assumption |
| 2009-08-15 |  Vanuatu | Assumption |
| 2009-08-15 |  Mayotte | Assumption |
| 2009-08-16 | Brazil | Dia de Santa Catarina |
| 2009-08-16 |  Dominican Republic | Restoration Day |
| 2009-08-16 | Gabon | Independence Day |
| 2009-08-16 | Vanuatu | Public Holiday |
| 2009-08-17 |  Argentina | Anniversary of the death of General José de San Martín |
| 2009-08-17 | Canada | Saskatchewan Day (SK) |
| 2009-08-17 | Canada | Discovery Day (YT) |
| 2009-08-17 | Colombia | Assumption |
| 2009-08-17 |  Indonesia | Independence Day |
| 2009-08-17 | United States of America | Bennington Battle Day |
| 2009-08-20 | Chile | Nativity of Liberator Bernardo O'Higgins |
| 2009-08-20 |  Estonia | Day of Restoration of Independence |
| 2009-08-20 |  Hungary | Saint Stephen's Day |
| 2009-08-20 | Kingdom of Morocco | Anniversary of the Revolution of the King and the People |
| 2009-08-21 | Canada | Gold Cup Parade Day |
| 2009-08-21 | Kingdom of Morocco | Youth Day |
| 2009-08-21 | United States of America | Statehood Day |
| 2009-08-22 |  United Arab Emirates | First day of Ramadan |
| 2009-08-22 |  Brunei | First day of Ramadan |
| 2009-08-22 |  Ethiopia | First day of Ramadan |
| 2009-08-22 |  Malaysia | First day of Ramadan |
| 2009-08-23 | Pakistan | Ganesh Chaturthi |
| 2009-08-24 | People's Republic of Bangladesh | Krishna Janmashtami |
| 2009-08-24 |  Liberia | Flag Day |
| 2009-08-24 | Malaysia | Melaka State Governor's Birthday |
| 2009-08-24 |  Ukraine | Independence Day |
| 2009-08-24 | Pakistan | Birthday of Lord Zoroaster (Khordad Sal) |
| 2009-08-25 |  Uruguay | Independence Day |
| 2009-08-26 |  Namibia | Heroes' Day |
| 2009-08-26 |  Papua New Guinea | National Day of Repentance |
| 2009-08-27 |  Moldova | Independence Day |
| 2009-08-28 | Bosnia and Herzegovina | Assumption |
| 2009-08-28 |  Georgia | Saint Mary's Day |
| 2009-08-29 |  Slovakia | Slovak National Uprising anniversary |
| 2009-08-30 |  Peru | Santa Rosa de Lima |
| 2009-08-30 |  Turkey | Victory Day |
| 2009-08-30 |  Kazakhstan | Constitution Day |
| 2009-08-30 |  Timor Leste | Popular Consultation Day |
| 2009-08-31 | United Kingdom | Summer bank holiday |
| 2009-08-31 |  Gibraltar | Late Summer Bank Holiday |
| 2009-08-31 | Moldova | National Language Day |
| 2009-08-31 | Malaysia | Independence Day |
| 2009-08-31 |  Philippines | National Heroes' Day |
| 2009-08-31 | St. Helena | August Bank Holiday |
| 2009-08-31 | Trinidad & Tobago | Independence Day |
| 2009-08-31 | Kazakhstan | Constitution Day (observed) |
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