Dutch Holidays - King's Day (Koningsdag)
Celebrated on 27 AprilDutch Holidays - King's Day (Koningsdag)
Other holidays on 27 April
- Russian holidays - Day of the Shift Worker (Day of Shift Workers)
- International holidays - World Graphic Design Day
- World Veterinary Day
- World Tai Chi and Qigong Day
- Holidays of Russia - Day of Russian Parliamentarism
- Holidays of Russia - Day of formation of the Republic of Sakha (Yakutia)
- Funny holidays - Birthday of "diapers"
- Fun Holidays - World Tapir Day
- International Sculpture Day
- World Healing Day
- Russian holidays - Day of formations and military units for the protection of important state facilities and special cargo of the Russian Guard (Special Units Day)
- Holidays in Slovenia - Day of National Resistance
- Fun Holidays - Love Your Thighs Day
- Fun Holidays - 50% Dinosaur Chance Day
- Catholic holidays - Day of Saint Zita (patron of waiters, footmen and housekeepers)
- National Veterans Day in Finland (Kansallinen veteraanipaiva)
- According to the folk calendar - Martyn Lisogon
- Holidays in South Africa - Freedom Day in South Africa
- Memorial Day of St. Martin I
- Memorial Day of the Holy Martyrs of Vilna
- Lazarev Saturday