Thomas Charles Desmond (September 15, 1887 – October 6, 1972) was an American engineer and politician from New York.

He graduated from Harvard University in 1908, and from the Massachusetts Institute of Technology in 1909.

On August 16, 1923, he married Alice B. Curtis,[2] an author of biographies, and travel and children's books.

Desmond was a member of the New York State Senate from 1931 to 1958, sitting in the 154th, 155th, 156th, 157th, 158th, 159th, 160th, 161st, 162nd, 163rd, 164th, 165th, 166th, 167th, 168th, 169th, 170th and 171st New York State Legislatures; and was Chairman of the Committee on Public Printing in 1931, and of the Committee on Military Affairs in 1932.

[3] In 1976, his widow Alice Curtis Desmond (1897–1990) married Hamilton Fish III (1888–1991).