Mad Hatter Day in the USA (National Mad Hatter Day)
Celebrated on 6 OctoberMad Hatter Day in the USA (National Mad Hatter Day)
Other holidays on 6 October
- World Habitat Conservation Day
- Russian Insurer Day
- World Smile Day
- Holidays Hoshana Rabbah among the Jews
- Garlic Lovers Day
- World Cerebral Palsy Day
- Belarus Archivist Day
- World Cerebral Palsy Day
- Chandelier Hanging Day
- According to the folk calendar - Iraida Spornaya
- Catholic Feast of Saint Bruno
- Egyptian Army Day
- Day of the October War in Syria (Day of the beginning of the Yom Kippur War, Tishren Liberation Day)
- Remembrance Day in Turkmenistan (Remembrance Day)
- Auditor and Accountant Day in Kazakhstan
- Day of the Victims of State Terrorism in Cuba (Anniversary of the Cubana Bombing)
- Memorial Day for the Martyrs of Arad in Hungary
- Dukla Pass Victims Day in Slovakia
- National Orange Wine Day in the USA
- Come and Take It Day in the USA
- National Badger Day in the USA
- National Noodle Day in the USA
- National Coaches Day in the USA
- National Plus Size Appreciation Day in the USA
- German-American Day in the USA
- Feast of the Slovenian Wonderworking Icon of the Mother of God
- Conception of the glorious Prophet, Forerunner and Baptist of the Lord John
- Feast of the Iveron Hawaiian Icon of the Mother of God, Myrrh-Streaming