Lithuanian holidays - Battle of Zalgiris Day (Battle of Grunwald Day)
Celebrated on 15 JulyLithuanian holidays - Battle of Zalgiris Day (Battle of Grunwald Day)
Other holidays on 15 July
- UN Holidays - World Youth Skills Day
- Funny holidays - Russian Laziness Day
- Funny Holidays - Margarine's Birthday
- Russian Holidays - Birthday of the Nizhny Novgorod Fair
- Funny Holidays - Charcoal Drawing Day
- Funny holidays - Cucumber Festival in Suzdal
- Turkish Holidays - Democracy and National Unity Day (Demokrasi Ve Milli Birlik Gunu)
- UK Holidays - St. Swithin's Day
- According to the folk calendar - Bereginya
- Memorial Day of St. Photius of Moscow, Wonderworker of All Russia
- Feast of the Icon of the Mother of God of Feodotyevskaya
- Feast of the Akhtyrka Icon of the Mother of God
- Feast of the Icon of the Mother of God of Pozhaisk
- Feast of the Placing of the Venerable Robe of the Blessed Virgin Mary in Blachernae