Thomas Osmond (or Osgood)[1] Summers (11 October 1812 – 6 May 1882) was an English-born American Methodist theologian, clergyman, hymnist, editor, liturgist and university professor.

[2] At age seven, along with his brother, he moved under the care of a great aunt named Sarah Havilland, who had a lasting influence on him.

[6] He was selected to chair the committee tasked with creating a new hymnal for the Methodist Episcopal Church, South.

[6] He was chosen as the assistant editor of the Southern Christian Advocate, Charleston, South Carolina.

[6] In 1850, he moved to Nashville, Tennessee and worked as a book editor for the Methodist Episcopal Church, South.

[9] In 1855, he relocated to Nashville, as general editor of the Southern Christian Advocate and also supervising all of the Methodist Episcopal Church, South's Sunday School publications.

[14] In 1875, Summers served as Professor of Systematic Theology at Vanderbilt University, a newly established university in Nashville which was started as a Methodist institution by Holland Nimmons McTyeire (1824-1889), Bishop of the Methodist Episcopal Church, South.

"[16] In 1856, a few years before the American Civil War of 1861-1865, and together with William Andrew Smith (1802–1870), the President of his alma mater Randolph–Macon College, he published an essay about domestic slavery in the United States.