| Date | ISO week | Holiday | Where |
| Friday 1 May 2026 | 2026-W18 | Labor Day | Algeria, Andorra, Anguilla, Argentina, Armenia, Aruba, Austria, Bahrain, Belarus, Belgium, Benin, Bolivia, Burkina Faso, Caribbean Netherlands, Central African Republic, Chad, Chile, China, Colombia, Congo, Côte d'Ivoire, Croatia, Curaçao, Cyprus, Czechia, Djibouti, DR Congo, Ecuador, Egypt, El Salvador, France, French Guiana, French Polynesia, French Southern Territories, Gabon, Gambia, Germany, Greece, Grenada, Guadeloupe, Guatemala, Guinea, Guyana, Honduras, Hong Kong, Hungary, Iceland, Iraq, Italy, Jordan, Kenya, Kyrgyzstan, Lebanon, Libya, Liechtenstein, Luxembourg, Macau, Madagascar, Malaysia, Mali, Martinique, Mauritania, Mauritius, Mayotte, Mexico, Monaco, Montenegro, Morocco, New Caledonia, Nicaragua, North Macedonia, Norway, Pakistan, Palestine, Panama, Peru, Philippines, Portugal, Réunion, Romania, Rwanda, Senegal, Serbia, Seychelles, Singapore, Sint Maarten, Slovakia, Slovenia, Somalia, South Korea, Spain, St Barthélemy, St Lucia, St Martin, St Pierre & Miquelon, Suriname, Svalbard & Jan Mayen, Syria, Taiwan, Togo, Tunisia, Wallis & Futuna, Yemen |
| | International Labor Day | Bosnia & Herzegovina, Burundi, Cambodia, Costa Rica, Equatorial Guinea, Indonesia, Laos, Niger, Vietnam |
| | International Workers' Day | Albania, Cuba, Eritrea, Ethiopia, Lithuania, Mozambique, North Korea, Sri Lanka, Tanzania |
| | Labour Day | Belize, Botswana, Cameroon, Comoros, Ghana, Malawi, Uganda, Vanuatu, Zambia |
| | May Day | Åland Islands, Bangladesh, Barbados, Estonia, Finland, Gibraltar, Myanmar, Sweden |
| | Workers' Day | Lesotho, Namibia, Nigeria, Paraguay, San Marino, South Africa, Uruguay, Zimbabwe |
| | Worker's Day | Brazil, Cape Verde, Eswatini, Guinea-Bissau, Malta, São Tomé & Príncipe |
| | International Worker's Day | Angola, Maldives, Sierra Leone, Timor-Leste, Venezuela |
| | Great Prayer Day | Faroe Islands, Greenland |
| | Agriculture and Labor Day | Haiti |
| | Buddha Jayanti | Nepal |
| | Buddha Purnima | India |
| | Constitution Day | Marshall Islands |
| | Constitutional Assembly Convocation Day | Latvia |
| | Holiday of Spring and Labor | Russia |
| | International Labour Day | South Sudan |
| | International Workers' Solidarity Day | Moldova |
| | Kazakhstan's People Solidarity Holiday | Kazakhstan |
| | Labor and Solidarity Day | Turkey |
| | Labor Day and International Workers' Solidarity Day | Bulgaria |
| | National Day | Poland |
| | National Labor Day | Thailand |
| | National Workers' Day | St Vincent & Grenadines |
| | Saint Joseph the Worker's Day | Vatican City |
| Saturday 2 May 2026 | 2026-W18 | Labor Day | China, Montenegro, Serbia, Slovenia |
| | Birth Anniversary of the 3rd Druk Gyalpo | Bhutan |
| | Day Following Vesak Full Moon Poya Day | Sri Lanka |
| | International Labor Day | Bosnia & Herzegovina |
| | May Holidays | Kyrgyzstan |
| Sunday 3 May 2026 | 2026-W18 | Constitution Day | Japan |
| | Labor Day | Yemen |
| | Martyrs' Day | Lebanon |
| | May Holidays | Kyrgyzstan |
| | Mother's Day | Lithuania |
| | National Day of the Third of May | Poland |
| Monday 4 May 2026 | 2026-W19 | Labor Day | China, Dominican Republic, Montserrat |
| | Labour Day | Antigua & Barbuda, Dominica, St Kitts & Nevis |
| | May Day | Isle of Man, United Kingdom |
| | Cassinga Day | Namibia |
| | Coronation Day | Thailand |
| | Early May Bank Holiday | Jersey |
| | Emancipation Day | Cayman Islands |
| | Greenery Day | Japan |
| | May Bank Holiday | Ireland |
| | May Day Bank Holiday | Guernsey |
| | May Holidays | Kyrgyzstan |
| | Restoration of Independence Day | Latvia |
| Tuesday 5 May 2026 | 2026-W19 | Children's Day | Japan, South Korea |
| | Arrival Day | Guyana |
| | Constitution Day | Kyrgyzstan |
| | Day off (substituted) | China |
| | Ethiopian Patriots' Victory Day | Ethiopia |
| | Royal Ploughing Ceremony | Cambodia |
| | Senior Citizens Day | Palau |
| Wednesday 6 May 2026 | 2026-W19 | Martyrs' Day | Syria |
| | May Holidays | Kyrgyzstan |
| | Saint George's Day, Day of the Bulgarian Army | Bulgaria |
| | Substitute Holiday | Japan |
| Thursday 7 May 2026 | 2026-W19 | Defender of the Fatherland Day | Kazakhstan |
| | May Holidays | Kyrgyzstan |
| Friday 8 May 2026 | 2026-W19 | Victory Day | Czechia, France, French Guiana, French Polynesia, French Southern Territories, Guadeloupe, Martinique, Mayotte, New Caledonia, Réunion, St Barthélemy, St Martin, St Pierre & Miquelon, Wallis & Futuna |
| | Anniversary of the Election of the Holy Father | Vatican City |
| | May Holidays | Kyrgyzstan |
| Saturday 9 May 2026 | 2026-W19 | Victory Day | Belarus, Kazakhstan, Kyrgyzstan, Russia, Tajikistan |
| | Europe Day | Luxembourg, Moldova |
| | Liberation Day | Guernsey, Jersey |
| | Day of Memory and Honor | Uzbekistan |
| | Day of Victory over Fascism | Georgia |
| | Victory and Peace Day | Armenia |
| | Victory over Fascism Day | Azerbaijan |
| Sunday 10 May 2026 | 2026-W19 | Mother's Day | El Salvador, Latvia |
| | Creation of the Polisario Front | Western Sahara |
| | Federated States of Micronesia Day | Micronesia |
| | Resistance and Liberation Day | Lebanon |
| Monday 11 May 2026 | 2026-W20 | Victory Day | Kazakhstan, Russia |
| | Day of Memory and Honor | Uzbekistan |
| | Federated States of Micronesia Day | Micronesia |
| | Girmit Day | Fiji |
| | Gospel Day | Tuvalu |
| | Mother's Day | Samoa |
| | Victory over Fascism Day | Azerbaijan |
| Tuesday 12 May 2026 | 2026-W20 | Saint Andrew's Day | Georgia |
| Thursday 14 May 2026 | 2026-W20 | Ascension Day | Åland Islands, Aruba, Austria, Belgium, Benin, Botswana, Burkina Faso, Burundi, Cameroon, Caribbean Netherlands, Central African Republic, Congo, Côte d'Ivoire, Curaçao, Denmark, Eswatini, Faroe Islands, Finland, France, French Guiana, French Polynesia, French Southern Territories, Gabon, Germany, Greenland, Guadeloupe, Iceland, Indonesia, Lesotho, Liechtenstein, Luxembourg, Madagascar, Martinique, Mayotte, Monaco, Namibia, Netherlands, New Caledonia, Norway, Réunion, Senegal, Sint Maarten, St Barthélemy, St Martin, St Pierre & Miquelon, Svalbard & Jan Mayen, Sweden, Switzerland, Togo, Vanuatu, Vatican City, Wallis & Futuna |
| | HM King Norodom Sihamoni's Birthday | Cambodia |
| | Kamuzu Day | Malawi |
| | National Holiday | Paraguay |
| | National Unification and Integration Day | Liberia |
| Friday 15 May 2026 | 2026-W20 | Family Day | Venezuela |
| | National Independence Day | Paraguay |
| | Public Holiday | Botswana |
| Saturday 16 May 2026 | 2026-W20 | Revolution and Armed Forces Day | DR Congo |
| | SPLA Day | South Sudan |
| Sunday 17 May 2026 | 2026-W20 | Constitution Day | Nauru, Norway, Svalbard & Jan Mayen |
| | Day of Family Sanctity and Respect for Parents | Georgia |
| | Revolution and Armed Forces Day | DR Congo |
| Monday 18 May 2026 | 2026-W21 | Ascension Day | Colombia |
| | Constitution and State Flag Day | Turkmenistan |
| | Constitution Day | Nauru |
| | Discovery Day | Cayman Islands |
| | Flag Day and University Day | Haiti |
| Tuesday 19 May 2026 | 2026-W21 | Commemoration of Atatürk, Youth and Sports Day | Turkey |
| Wednesday 20 May 2026 | 2026-W21 | Commencement of the Armed Struggle | Western Sahara |
| | National Day | Cameroon |
| | Restoration of Independence Day | Timor-Leste |
| | Shackleton Day | South Georgia |
| Thursday 21 May 2026 | 2026-W21 | Independence Day | Montenegro |
| | National Spiritual Baptist Day | St Vincent & Grenadines |
| | Navy Day | Chile |
| Friday 22 May 2026 | 2026-W21 | Abolition of Slavery | Martinique |
| | Bermuda Day | Bermuda |
| | Independence Day | Montenegro |
| | Shavuot | Israel |
| | Unity Day | Yemen |
| Saturday 23 May 2026 | 2026-W21 | National Labour Day | Jamaica |
| Sunday 24 May 2026 | 2026-W21 | Pentecost | Åland Islands, Belgium, Caribbean Netherlands, Denmark, Estonia, Faroe Islands, Finland, Gabon, Greenland, Hungary, Iceland, Latvia, Liechtenstein, Madagascar, Netherlands, Norway, Poland, Sint Maarten, Slovenia, Svalbard & Jan Mayen, Sweden |
| | Buddha's Birthday | South Korea |
| | Day of Slavonic Alphabet, Bulgarian Enlightenment and Culture | Bulgaria |
| | Independence Day | Eritrea |
| | Saints Cyril and Methodius Day | North Macedonia |
| | Solemnity of Pentecost | Vatican City |
| | The Battle of Pichincha | Ecuador |
| | The Buddha's Birthday | Hong Kong |
| | Unity Day | Yemen |
| Monday 25 May 2026 | 2026-W22 | Pentecost Monday | Andorra, Anguilla, Austria, Belgium, Benin, British Virgin Islands, Central African Republic, Congo, Côte d'Ivoire, Denmark, Faroe Islands, France, French Guiana, French Polynesia, French Southern Territories, Gabon, Germany, Greenland, Grenada, Guadeloupe, Hungary, Iceland, Liechtenstein, Luxembourg, Madagascar, Martinique, Mayotte, Monaco, Montserrat, Netherlands, New Caledonia, Norway, Réunion, Senegal, St Barthélemy, St Lucia, St Martin, St Pierre & Miquelon, St Vincent & Grenadines, Svalbard & Jan Mayen, Togo, Wallis & Futuna |
| | Memorial Day | American Samoa, Guam, Northern Mariana Islands, Puerto Rico, United States, US Minor Outlying Islands, US Virgin Islands |
| | Whit Monday | Antigua & Barbuda, Bahamas, Barbados, Dominica, Solomon Islands, St Kitts & Nevis |
| | Africa Day | Guinea, Mali, Mauritania, Namibia, Zimbabwe |
| | Spring Bank Holiday | Gibraltar, Guernsey, Isle of Man, Jersey, United Kingdom |
| | Africa Freedom Day | Zambia |
| | Africa Liberation Day | Gambia |
| | Africa/Heroes Day | Lesotho |
| | African Liberation Day | Equatorial Guinea |
| | Alternative holiday for Buddha's Birthday | South Korea |
| | Day of Slavonic Alphabet, Bulgarian Enlightenment and Culture | Bulgaria |
| | Independence Day | Jordan |
| | JAGS McCartney Day | Turks & Caicos |
| | May Revolution Day | Argentina |
| | National Labour Day | Jamaica |
| | Saints Cyril and Methodius Day | North Macedonia |
| | The Battle of Pichincha | Ecuador |
| | The Buddha's Birthday | Hong Kong |
| Tuesday 26 May 2026 | 2026-W22 | Day of Arafah | Afghanistan, Djibouti, Egypt, Iraq, Jordan, Kuwait, Libya, Maldives, Saudi Arabia, Tunisia, United Arab Emirates |
| | Eid al-Adha | Oman, Pakistan, Sudan, Syria, Yemen |
| | Independence Day | Georgia, Guyana |
| Wednesday 27 May 2026 | 2026-W22 | Eid al-Adha | Afghanistan, Albania, Algeria, Azerbaijan, Bahrain, Benin, Bosnia & Herzegovina, Brunei, Burkina Faso, Burundi, Cameroon, Central African Republic, Chad, Christmas Island, Cocos Islands, Comoros, Côte d'Ivoire, Djibouti, Egypt, Eritrea, Ethiopia, Gabon, Gambia, Guinea, Guinea-Bissau, India, Indonesia, Iran, Iraq, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Libya, Malaysia, Maldives, Mali, Mauritania, Morocco, Niger, Oman, Pakistan, Palestine, Philippines, Qatar, Rwanda, Senegal, Sierra Leone, Singapore, Somalia, South Sudan, Sudan, Suriname, Syria, Tajikistan, Timor-Leste, Togo, Tunisia, Turkey, Turkmenistan, Uganda, United Arab Emirates, Uzbekistan, Western Sahara, Yemen |
| | Abolition of Slavery | Guadeloupe |
| | Eid al-Adha Holiday | Saudi Arabia |
| | Eid-ul-Adha | Ghana |
| Thursday 28 May 2026 | 2026-W22 | Eid al-Adha | Afghanistan, Algeria, Azerbaijan, Bahrain, Bangladesh, Comoros, Egypt, Gambia, Guyana, Iraq, Lebanon, Libya, Mauritania, Morocco, Myanmar, Nepal, Nigeria, Oman, Pakistan, Palestine, Qatar, Sri Lanka, Sudan, Syria, Tanzania, Turkey, Yemen |
| | Eid al-Adha Holiday | Djibouti, Jordan, Kuwait, Maldives, Saudi Arabia, Tunisia, United Arab Emirates |
| | Day after Eid al-Adha | Guinea, Niger |
| | Abolition of Slavery | St Martin |
| | Additional day off by Presidential decree | Uzbekistan |
| | Genocide Remembrance Day | Namibia |
| | Republic Day | Armenia |
| Friday 29 May 2026 | 2026-W22 | Eid al-Adha | Afghanistan, Algeria, Azerbaijan, Bahrain, Bangladesh, Egypt, Iraq, Libya, Oman, Palestine, Qatar, Sudan, Syria, Turkey, Yemen |
| | Eid al-Adha Holiday | Jordan, Kuwait, Maldives, Nigeria, Saudi Arabia, Tunisia, United Arab Emirates |
| | Additional day off by Presidential decree | Uzbekistan |
| | Ratu Sir Lala Sukuna Day | Fiji |
| | Republic Day | Nepal |
| Saturday 30 May 2026 | 2026-W22 | Eid al-Adha | Bangladesh, Palestine, Sudan, Turkey, Yemen |
| | Adhi Poson Full Moon Poya Day | Sri Lanka |
| | Anguilla Day | Anguilla |
| | Eid al-Adha Holiday | Maldives |
| | Indian Arrival Day | Trinidad & Tobago |
| | Mother's Day | Nicaragua |
| | Statehood Day | Croatia |
| Sunday 31 May 2026 | 2026-W22 | Vesak Day | Indonesia, Malaysia, Singapore |
| | Armed Forces Day | Brunei |
| | Eid al-Adha | Yemen |
| | Eid al-Adha Holiday | Saudi Arabia |
| | Lord Buddha's Parinirvana | Bhutan |
| | Mother's Day | Madagascar |
| | Pentecost | Romania |
| | Solemnity of Holy Trinity | Vatican City |
| | The Buddha's Birthday | Mongolia |
| | Visakha Bucha | Thailand |