The Sierra Leonean National Day is a specific date on the 27 April (1961) to observe the Independence Day of Sierra Leone.

Often this public holiday in Sierra Leone is not called as National Day. However, the banks, schools along with other public buildings would be closed.

The 1st of January is celebrated as The New Year in Sierra Leone to mark the beginning of a new calendar year.

May Day can be another national holiday in Sierra Leone which is observed to commemorate the achievements of the labor movement.

Christmas Day is a public holiday in the majority of of the countries and observed on December 25 to commemorate the birth of Jesus.

The Orthodox Christian and Western-Roman Catholic patronal feast day or 'name day' are celebrated in each place's patron saint's day, according to the Calendar of saints.

The largest holidays for Muslims in Sierra Leone are Eid ul-Fitr. This is celebrated immediately after the end of Ramadan and Eid al-Adha which is celebrated at the conclusion of the Hajj.

Diwali (Festival of Light) is amongst the significant holidays observed by Hindus, Jains and Sikhs who reside in Sierra Leone.

Jews who live in Sierra Leone observe several festivals: the Passover (Spring Feasts of Pesach) and Shavuot, the Rosh Hashanah (beginning of the Year), Yom Kippur (Day of Atonement), Sukkot (Tabernacles), and Shemini Atzeret (Eighth Day of Assembly).