Thiruvarur (Tamil pronunciation: [θɪrʊvɑːruːr]) also spelt as Tiruvarur[a] is a town and municipality in the Indian state of Tamil Nadu. It is the administrative headquarters of Thiruvarur district and Thiruvarur taluk. The temple chariot of the Thyagaraja temple, weighing 360 tonnes (790,000 lb) and measuring 96 feet (29 m) tall is the largest temple chariot in India. Thiruvarur is the birthplace of Tyagaraja, Muthuswami Dikshitar and Syama Sastri, popularly known as the Trinity of Carnatic music of the 18th century CE. Thiruvarur Thiyagarajaa Swaamy temple is older than Tanjore big temple.
Thiruvarur was a part of Thanjavur district until 1991. The Odambokki river passes through the centre of the town. Thiruvarur covers an area of 10.47 km2 (4.04 sq mi) and had a population of 58,301 as of 2011. Out of total population of Tiruvarur, 1,403,348 in the district, 257,795 are in urban area and 1,006,482 are in rural area. 65,220 households are in urban, 261,999 are in rural area.