Mannargudi is a town situated in the Thiruvarur district of Tamil Nadu, India. It serves as the administrative headquarters for the Mannargudi taluk.
The town is located approximately 28 km from the district headquarters of Thiruvarur and 310 km from Chennai, the state capital. Other nearby landmarks include Needamangalam (12 km), Kumbakonam (36 km), and Thanjavur (40 km).
Mannargudi is notably recognized for housing the Rajagopalaswamy temple, which is a prominent Vaishnavite shrine.