Ambur is a town and municipality in newly announced Tirupathur district, Vellore region of Tamil Nadu, India.

Ambur has a sizeable leather industry, and is known for its spicy biryani and for the sweet, makkhenpeda.

The first was the 1749 Battle of Ambur that opened the Second Carnatic War between the Arcot State and the Mughal Empire.

In 1767, the siege of Ambur took place during the First Anglo-Mysore War, with local troops and a British force successfully resisting an attack by the Kingdom of Mysore and by the Hyderabad State.

[1] According to 2011 census, Ambur had a population of 114,608 with a sex-ratio of 1,033 females for every 1,000 males, much above the national average of 929.

Ambur has a tropical wet-and-dry climate, reaching high temperatures during summer and experiences wet winters.

[8] Ambur has a regular railway station (code name: AB) with double electric-line track.