"O for a Thousand Tongues to Sing" is a Christian hymn written by Charles Wesley. The hymn was placed first in John Wesley's A Collection of Hymns for the People Called Methodists published in 1780. It was the first hymn in every (Wesleyan) Methodist hymnal from that time until the publication of Hymns and Psalms in 1983.

Charles Wesley was an English Anglican cleric and a principal leader of the Methodist movement. Wesley was a prolific hymnwriter who wrote over 6,500 hymns during his lifetime. His works include "And Can It Be", "O for a Thousand Tongues to Sing", "Christ the Lord Is Risen Today", "Love Divine, All Loves Excelling", the carol "Hark! The Herald Angels Sing", and "Lo! He Comes With Clouds Descending".