Sivaganga District (Tamil: சிவகங்கை மாவட்டம்) is an administrative district of Tamil Nadu state in southern India. The city of Sivaganga is the district headquarters. It is bounded by Pudukkottai district on the Northeast, Tiruchirapalli district on the North, Ramanathapuram district on South East, Virudhunagar district on South West and Madurai District on the West.

Sivaganga District has been carved out from composite Ramnad District as per G.O. MS. No. 1122 Rev. Dept. Dated. 6.7.84 and the District was functioning from 15.3.85 as per G.O Ms.No. 346 Rev. dept. Dated: 8.3.85.

According to the 2011 census Sivaganga district has a population of 1,341,250, roughly equal to the nation of Swaziland or the US state of Maine. This gives it a ranking of 360th in India (out of a total of 640). The district has a population density of 324 inhabitants per square kilometre (840 /sq mi) . Its population growth rate over the decade 2001-2011 was 16.09 %. Sivaganga has a sex ratio of 1000 females for every 1000 males, and a literacy rate of 80.46 %.