The Ayroor Salem Marthoma Church, also known as Salem Mar Thoma Church, belongs to the Malankara Mar Thoma Syrian Church denomination, which is an autonomous Oriental Protestant Christian church based in Kerala. Salem Mar Thoma Church is situated in Ayroor, Kottathoor P.O., Pathanamthitta District, Kerala. The church is part of the larger Mar Thoma Syrian Church organization, which has over 1 million followers and 1,246 places of worship across various locations.