Tinkham is a surname. Notable people with the surname include:
Ernest Robert Tinkham (1904–1987), American entomologist Eugene M. Tinkham (1842–1909), American Civil War soldier Frank L. Tinkham (1884–1963), American college football and basketball coach George Henry Tinkham (1849–1945), American historian on California, writer George H. Tinkham (1870–1956), American politician Hugh Tinkham (born 1946), Canadian politician Michael Tinkham (1928–2010), American physicist Richard Tinkham (1932–2018), American basketball executive Stan Tinkham (1931–2019), American swimmer and swimming coach Lieutenant Abiel W. Tinkham (1824–1871), American railroad surveyor. The two mountains below were both named after him.
See also Tinkham Mountain, mountain in the Lewis Range, Montana, United States Tinkham Peak, a mountain in the Cascade Range, Washington, United States