Daniel Thambyrajah Niles (4 May 1908 – 17 July 1970) was a Sri Lankan pastor, theologian, ecclesiologist, evangelist and president of the Ceylon Methodist Conference.

[2] After returning to Ceylon, Niles taught at Jaffna Central College until 1936.

[2] He was appointed Executive Secretary of the Department of Evangelism in the World Council of Churches in 1953.

[1] Niles was pastor of the Methodist Church in Point Pedro (1946–50); pastor at Maradana (1950–53); principal of Jaffna Central College (1956–62); and superintendent minister at St. Peter's Church, Jaffna (1953–59).

[2] Niles wrote the hymn "The Great love of God is revealed in the Son".