Charles Otis Gill (March 4, 1868 – June 2, 1959) was an American Congregationalist clergyman and college football player and coach.

Born in Walpole, Massachusetts, on March 4, 1868, Gill graduated from Yale University in 1889, where he was a member of Skull and Bones.

[1][2] Gill played on the Yale Bulldogs football team from 1885 to 1889,[3][4] earning varsity letters for the 1886–1889 seasons.

Remaining in Harland, Gill collaborated with a former Yale football teammate, Gifford Pinchot, in writing The Country Church - The Decline Of Its Influence and The Remedy published by Macmillan Company in 1913.

In that capacity he wrote a second book with Pinchot, Six Thousand Country Churches, published by MacMillan in 1919.