Nazira (Assamese: [naziɹa]) is a City and a municipal board in Sivasagar district in the Indian state of Assam.

According to tradition Nazira got its name from "Now-Jeera", which in Assamese means resting place of boats.

The historian Sarbananda Rajkumar states, however, that nazira is a Tai Ahom word: na means "land", zi "inclined" and ra "much".

The Kareng Ghar a palace from the Medieval period build by King Rajeshwar Singha, a ruler of the Ahom kingdom stands as a testimony of the bygone era.

During the British rule, tea plantations were started in and around Nazira like the other parts of upper Assam.

[4] An old British graveyard lies inside ONGC Colony in Nazira town.

After he got his throne as a King he removed the Siva Linga and established it on the bank of Dikhow River just opposite to Gargaon in a temple which was called as Maidol.

Here tourist can see the very sacred earthen pyramids (Tombs) of Ahom Kings, families and other ministers.

During World War II (1939–1945) also Nazira had played an important rule in China Burma India Theatre.

The OSS Detachment 101 established a base camp under the guise of a centre for malarial research at a tea plantation near Nazira.

It has a long rainy season starting with pre-monsoon showers in the months of April, which signals the onset of spring.

Nazira is mainly inhabited by Ahoms followed by the Assamese Muslims, Brahmins, Koch, Kalitas, Deories Kaibarta and tea tribes constitute the rest of the portion of the demographic chart.

[11] List of MLA Nazira lies in an oil and gas rich region.

The headquarters of ONGC, Assam Asset, a Maharatna E&P company is situated in Nazira.