US Holidays - Hawaiian Flag Day (Ka Hae Hawaii Day)
Celebrated on 31 JulyUS Holidays - Hawaiian Flag Day (Ka Hae Hawaii Day)
Other holidays on 31 July
- International holidays - World Ranger Day
- Funny Holidays - Harry Potter's Birthday
- Funny Holidays - Day of Remembering Your Favorite Books
- Funny Holidays - Uncommon Musical Instrument Awareness Day
- International holidays - International Day of African Women
- Catholic holidays - Feast Day of Ignatius of Loyola
- According to the folk calendar - Omelyanov day
- Memorial Day of St. John the Long-Suffering, Pechersk
- Feast of the miraculous Kaluga Icon of the Mother of God
- Memorial Day of the Martyr Jacinthos of Amastrida
- Memorial Day of the Martyr Emilian Dorostolsky