The following list of general holidays for 2021 have been gazetted:
| Holiday | Date | Weekday |
| The first day of January | 1 January | Friday |
| Lunar New Year’s Day | 12 February | Friday |
| Second day of Lunar New Year | 13 February | Saturday |
| Fourth day of Lunar New Year | 15 February | Monday |
| Good Friday | 2 April | Friday |
| Easter Saturday | 3 April | Saturday |
| Day following Ching Ming Festival | 5 April | Monday |
| Day following Easter Monday | 6 April | Tuesday |
| Labour Day | 1 May | Saturday |
| Birthday of the Buddha | 10 May | Wednesday |
| Tuen Ng Festival | 14 June | Monday |
| Hong Kong Special Administrative Region Establishment Day | 1 July | Thursday |
| Day following the Chinese Mid-Autumn Festival | 22 September | Wednesday |
| National Day | 1 October | Friday |
| Chung Yeung Festival | 14 October | Thursday |
| Christmas Day | 25 December | Saturday |
| The first weekday after Christmas Day | 27 December | Monday |
Notes: A Government spokesman said, “As the third day of the Lunar New Year in 2021 falls on a Sunday, the fourth day of the Lunar New Year is designated as a general holiday in substitution. Furthermore, as the Ching Ming Festival in 2021 falls on a Sunday, the following day will be designated as a general holiday in substitution. However, as the day following the Ching Ming Festival and Easter Monday fall on the same day, the next day that is not itself a general holiday will be observed as an additional general holiday.