Harry Thomas Silcock (1882–1969), also known as Henry Thomas Silcock, was an English missionary of the Religious Society of Friends (Quaker), who served as vice president of the West China Union University during its initial years.

He travelled to China as a missionary and teacher through the Friends' Foreign Mission Association (FFMA) in 1908 and married Margaret Standing in Chengdu (Chengtu, Sichuan) the next year, with whom he had five children.

[2] He was a member of the Temporary Board of Management of the West China Union University, together with Joseph Beech, Dr. Canright, C. R. Carscallen, E. J. Carson, H. T. Hodgkin, H. D. Robertson, J. Taylor, E. Williams, and J. W.

[3] He began to work at the Union University in 1911, one year after its establishment, and was appointed as vice president.

[4] In 1919, the Silcocks returned to England, where Harry took over the secretariat of the FFMA, a position he held until 1932, when he became secretary of the Universities' China Committee in London.