| 1 October |
International Day of the Older Persons |
| 1 October |
International Coffee Day |
| 1 October |
World Vegetarian Day |
| 2 October |
Gandhi Jayanti |
| 2 October |
International Day of Non-Violence |
| 2 October |
Lal Bahadur Shastri Jayanti |
| 3 October |
German Unity Day |
| 3 October |
World Temperance Day |
| 4 October |
World Animal Welfare Day |
| 5 October |
World Teachers’ Day |
| 6 October |
German-American Day |
| 6 October |
World Cerebral Palsy Day |
| 7 October |
World Cotton Day |
| 7 October |
World Habitat Day (First Monday of October) |
| 8 October |
Indian Air Force Day |
| 9 October |
World Postal Day |
| 10 October |
National Post Day |
| 10 October |
World Mental Health Day |
| 10 October |
World Sight Day (Second Thursday of October) |
| 11 October |
International Day of the Girl Child |
| 13 October |
International Day for Disaster Risk Reduction |
| 13 October |
Breast Cancer Awareness Day |
| 14 October |
World Standards Day |
| 15 October |
Pregnancy and Infant Loss Remembrance Day |
| 15 October |
Global Handwashing Day |
| 15 October |
World White Cane Day |
| 15 October |
World Students’ Day |
| 16 October |
World Food Day |
| 16 October |
World Anaesthesia Day |
| 16 October |
Boss Day |
| 16 October |
World Spine Day |
| 17 October |
International Day for the Eradication of Poverty |
| 17 October |
Valmiki Jayanti |
| 20 October |
World Statistics Day |
| 21 October |
Police Commemoration Day |
| 23 October |
Mole Day |
| 24 October |
United Nations Day |
| 24 October |
World Development Information Day |
| 28 October |
International Animation Day |
| 30 October |
World Thrift Day |
| 31 October |
Rashtriya Ekta Diwas or National Unity Day |
| 31 October |
Halloween |
