Kottayam Lok Sabha constituency (Malayalam: കോട്ടയം ലോക്സഭാ നിയോജക മണ്ഡലം) is one of the 20 Lok Sabha (parliamentary) constituencies in Kerala state in southern India.

Kottayam Lok Sabha constituency is composed of the following assembly segments:[1] Former Constituencies Elected MP Thomas Chazhikadan switched to LDF alliance as he sided with Jose K Mani after the Split in Kerala Congress in 2020.