World Vegetarian Day: 01 October
- World Vegetarian Day is observed annually on October 1 globally to raise awareness about the ethical, environmental, health, and humanitarian benefits of a vegetarian lifestyle.
- The day was initiated by the North American Vegetarian Society in Scotland in 1977 during the World Vegetarian Congress.
- The full week between October 1–7 is observed as the International Vegetarian Week (IVW).