Sonari (IPA: ˈsəʊnɑːrɪ / Assamese: [xʊnaɹi]) is a city and headquarters of the Sonari district (by Chief Minister Mr. Tarun Gogoi on 15 August 2015) in the Indian state of Assam.

There are several unexplored destinations of tourism. For instance the mension of famous Assamese poet, lyricist and dramatist Late Parvati Prasad Baruah, The Sonari Shiva Temple, The Sonari Mosque, The Town Auditorium, The Shani Temple, etc.

Sonari is located at 27°04′N 95°02′E / 27.07°N 95.03°E / 27.07; 95.03. It has an average elevation of 97 metres (318 feet). It is a major town on the nearly 500-year-old "Dhodar Ali" built by the Ahom Kings. Dhodar ali was forcefully commissioned by Ahom king Gadadhar Singha using the so-called lazy people or the socially unproductive 'Dhods' residing within Assam. Situated by the side of the Taokak river, Sonari is the headquarters of Charaideo District, Assam. The nearest railway station is Bhojo, which is about 3 km away located by the bank of historical Disang River. The best way to reach Sonari by road is from Sivasagar town through the Dhodar Ali near which the famous royal mausoleum of the Ahom Kings at Charaideo is situated. Sonari is a centre for tea and timber industries and is the gateway to the Mon district of Nagaland.

It is claimed that the original name of Sonari was Sonapur. It is also believed that Sutamla rested for days in Sonari before proceeding to Namrup during the invasion of Assam and Ahom capital by Aurangzeb's general Mir Jumlah during 1663. One of the first two tea estates set up by Maniram Dewan has now been discovered by Dr Pradip Baruah of the Tocklai Experimental Station of the Tea Research Association. Dewan established the Cinnamara TE at Jorhat and Senglung TE near Suffry, Sonari, around 169 years back, in 1845. Maniram Dewan was the first Indian commercial tea planter. In the middle of the town there is a park around a historic Ahom Kingdom's tank called Bor Pukhuri. This park near the post office is now called Lachit Nagar park, since a full size statue of Assam's great general from Ahom period is erected here. Similarly a statue of Koch General Chilarai has been erected near Tawkak river bridge while entering the town. In 2004 during the birth centenary of Geetikavi Parvati Prasad Baruva a bust size white statue of this lyrical poet was inaugurated at Sonari.

As of 2001^[update] India census, Sonari had a population of 17,430. Males constitute 55% of the population and females 45%. Sonari has an average literacy rate of 92%, higher than the national average of 59.5%: male literacy is 79% and female literacy is 72%. In Sonari, 12% of the population is under 6 years of age.

Sonari town have a population of 154,296 as per 2011 census. Assamese is Spoken by 11,475 people, Bengali at 3,797, Hindi at 1,934 and Bhojpuri by 1,474 people.

Sonari is one of the most important towns in eastern Assam. It is a commercial center for Charaideo District. There is a Sub-Divisional Court and an S.D.O. court at Rajadhap. There are several tea gardens around Sonari and a Gymkhana club golf course. Built sometime around 1945 this golf course was created by the tea planters. The golf course is 1.5 km away from the Sonari Gymkhana, and as a whole about 5 km away from the centre of Sonari Town . There are dramatic changes in elevation on this course which make it interesting. This course is part of the NAPUK tea estate. Assam Chah Mazdoor Sangha, Sonari Branch is Affiliated to INTUC No. IV/2211 of 1959 and Registration no.445

In the Middle of the town there is a park around a historic Ahom Kingdom's tank called Bor Pukhuri.