Gilman is both a surname and a given name. Notable people with the name include:
Surname:
Alfred G. Gilman (1941–2015), Nobel Prize–winning scientist
Alfred Gilman, Sr. (1908–1984), American pharmacologist, co-author of The Pharmacological Basis of Therapeutics
Arthur Gilman (educator) (1837-1909), worked mostly in Massachusetts
Arthur D. Gilman (1821–1882), Boston architect
Benjamin A. Gilman (1922–2016), United States representative from New York
Benjamin Ives Gilman (1852-1933), Boston Museum curator
Benjamin Ives Gilman (1766) (1766-1833), shipbuilder and politician from Ohio
Billy Gilman, country singer
Caroline Howard Gilman, United States author
Charlotte Perkins Gilman, turn-of-the-century feminist author
Charles Gilman (disambiguation), several persons
Daniel Coit Gilman, American educator
Daniel Hunt Gilman, American railroad builder
Dorothy Gilman, American author
Felix Gilman, American author
Franklin Gilman (1825-1880), American politician and farmer
George G. Gilman, author of Western novels
Harold Gilman (1876–1919), British artist
Henry Gilman, American organic chemist
Howard Gilman, industrialist (Gilman Paper Company), philanthropist
John Taylor Gilman (1753–1828), Continental Congress member from New Hampshire, Governor of New Hampshire
John M. Gilman (1824-1906), American politician lawyer
Joseph Gilman (1738), (1738-1806), pioneer settler and judge of Ohio
Laura Anne Gilman, American author
Laurence Gilman (born 1965), Canadian ice hockey executive
Lawrence Gilman (1878–1939), American author and music critic
Marcus D. Gilman (1820-1889), American politician and businessman
Nicholas Gilman, one of the signers of the United States Constitution; United States Senator from New Hampshire
Phoebe Gilman, American children's book author
Ronald Lee Gilman, judge on the United States Court of Appeals for the Sixth Circuit
Sander Gilman (born 1944), cultural and literary historian
Sarah Gilman (born 1996), American actress
Theodore P. Gilman, NYS Comptroller 1900
Winthrop Sargent Gilman (1808–1884), banker, abolitionist, Gilman, Son & Co., New York City
Given name:
Gilman Marston, United States senator from New Hampshire
Gilman Louie, venture capitalist
George Gilman Fogg, United States senator from New Hampshire