There are 25 public holidays in Sri Lanka in 2021, and five of them fall on weekends.
The following is the list of public holidays in Sri Lanka 2021.
| Holiday | Date | Weekday | Note |
|---|---|---|---|
| Tamil Thai Pongal Day | Jan 14, 2021 | Thursday | Public Holiday |
| Duruthu Full Moon Poya Day | Jan 28, 2021 | Thursday | Public Holiday |
| National Day | Feb 04, 2021 | Thursday | Public Holiday |
| Navam Full Moon Poya Day | Feb 26, 2021 | Friday | Public Holiday |
| Mahasivarathri Day | Mar 11, 2021 | Thursday | Public Holiday |
| Madin Full Moon Poya Day | Mar 28, 2021 | Sunday | Public Holiday |
| Good Friday | Apr 02, 2021 | Friday | Public Holiday |
| Sinhala and Tamil New Year's Eve | Apr 13, 2021 | Tuesday | Public Holiday |
| Sinhala and Tamil New Year's Day | Apr 14, 2021 | Wednesday | Public Holiday |
| Bak Full Moon Poya Day | Apr 26, 2021 | Monday | Public Holiday |
| Labour Day | May 01, 2021 | Saturday | Public Holiday |
| Eid al-Fitr | May 13, 2021 | Thursday | Public Holiday |
| Vesak Full Moon Poya Day | May 26, 2021 | Wednesday | Public Holiday |
| Vesak Full Moon Poya Day Holiday | May 27, 2021 | Thursday | Public Holiday |
| Poson Full Moon Poya Day | Jun 24, 2021 | Thursday | Public Holiday |
| Eid al-Adha | Jul 20, 2021 | Tuesday | Public Holiday |
| Esala Full Moon Poya Day | Jul 23, 2021 | Friday | Public Holiday |
| Nikini Full Moon Poya Day | Aug 22, 2021 | Sunday | Public Holiday |
| Binara Full Moon Poya Day | Sep 20, 2021 | Monday | Public Holiday |
| Holy Prophet's Birthday | Oct 19, 2021 | Tuesday | Public Holiday |
| Vap Full Moon Poya Day | Oct 20, 2021 | Wednesday | Public Holiday |
| Deepavali Festival Day | Nov 04, 2021 | Thursday | Public Holiday |
| Il Full Moon Poya Day | Nov 18, 2021 | Thursday | Public Holiday |
| Unduvap Full Moon Poya Day | Dec 18, 2021 | Saturday | Public Holiday |
| Christmas Day | Dec 25, 2021 | Saturday | Public Holiday |
* Please also check working days in Sri Lanka in 2021.