Since Kodaikanal was founded by the American and European Missionaries, Christian churches are abundant in Kodaikanal. They include Church of South India - opposite Bryant Park, Gorapur, Lake End, La Salette, Lutheran Mission, Sacred Heart - Munjikal, Saint Antony’s - Antonyar Kovil street, Saint Francis Xavier, Saint Joseph's, Saint Mary's and Saint Peter’s - Cockers Walk road. Amongst the most popular is Union Church with a large Tamil congregation and Margaret Eddy Memorial Chapel at Kodai International School with lively services in a typically American style and distinctive stone architecture.
There are many Hindu Temples in Kodaikanal including the Durgai Amman Kovil, Kurinji Andavar Kovil, Mariamman Kovil, Observatory Murugan Kovil and Vinayagar Kovil. The Muslim mosques are Ellis Villa and Munjikal. There is an active community of Tibetan Buddhist refugees