List of Holidays in the December 2021 in India, iiQ8
| 1 December 2021 | Wednesday | Indigenous Faith Day | Arunachal Pradesh |
| 3 December 2021 | Friday | Feast of St Francis Xavier | Goa |
| 5 December 2021 | Sunday | Sheikh Muhammad Abdullah Jayanti | Jammu and Kashmir |
| 8 December 2021 | Wednesday | Sri Guru Teg Bahadur Ji’s Martyrdom Day | Punjab |
| 12 December 2021 | Sunday | Pa Togan Nengminza Sangma | Meghalaya |
| 18 December 2021 | Saturday | Death Anniversary of U SoSo Tham | Meghalaya |
| 18 December 2021 | Saturday | Guru Ghasidas Jayanti | Chandigarh |
| 19 December 2021 | Sunday | Liberation Day | Daman and Diu & Goa |
| 24 December 2021 | Friday | Christmas Holiday | Meghalaya & Mizoram |
| 25 December 2021 | Saturday | Christmas Day | All states |
| 26 December 2021 | Sunday | Shaheed Udham Singh Jayanti | Haryana |
| 26 December 2021 | Sunday | Christmas Holiday | Meghalaya, Mizoram & Telangana |
| 30 December 2021 | Thursday | U Kiang Nangbah | Meghalaya |
| 30 December 2021 | Thursday | Tamu Losar | Sikkim |
| 31 December 2021 | Friday | New Year’s Eve | Manipur |
List of Holidays in the November 2021 in India, iiQ8
List of Holidays in the October 2021 in India, iiQ8
List of Holidays 2022 – Government, Public & Bank Holidays in India, Public Holidays
List of Holidays 2021 – Government, Public & Bank Holidays in India, Public Holidays