Children's Day in Brazil (Our Lady of Aparecida Day)
Celebrated on 12 OctoberChildren's Day in Brazil (Our Lady of Aparecida Day)
Other holidays on 12 October
- Personnel Day in Russia
- World Arthritis Day
- Clean Glass Festival
- Chocolate Surprise Day
- Medical Service Day of the Ministry of Internal Affairs of Russia
- World Sight Day
- Freethought Day
- According to the folk calendar - Feofan the Gracious
- International Moment of Frustration Scream Day
- Day of Meeting of Cultures in Costa Rica
- Anti-Tobacco Day in Armenia
- Spanish Nation Day, Hispanidad Day in Spain (Feast of the Holy Virgin Pilar, Día de la Hispanidad / Hispanic Day)
- Feast of the Apparition of the Virgin Mary in Brazil (Holy Mary`s Day)
- Memorial Day of St. John of Shanghai (Discovery of Relics)
- Memorial Day of St. Kyriakos of Palestine, hermit
- Orthodox holidays - Memorial Day of St. John of Riga