Ilaiyangudi is a state assembly constituency in Sivaganga district in Tamil Nadu.

In 2008, under a Delimitation of Parliamentary and Assembly Constituency Order, the Ilaiyangudi assembly constituency was merged with Manamadurai.

Nine contestants were in fray in Ilayankudi constituency. They included three from major political parties, Suba. Mathiarasan of DMK, Azhagu. Balakrishnan of DMDK and P. M. Rajendran of BJP.

9°38′N 78°38′E / 9.63°N 78.63°E / 9.63; 78.63