John Mitchel Galvin (1850–1924) was an American politician who served as Boston City Clerk from 1891 to 1900.

On November 3, 1908 he was a candidate for the United States House of Representatives seat in Massachusetts's 10th congressional district, but lost to Joseph F. O'Connell by 4 votes.

He campaigned for Boston's annexation of West Roxbury, served on the Jamaica Plain district school committee for many years and was the Democratic nominee for the Massachusetts House of Representatives in Ward 28.

[1][3] He was an avid supporter of Owen A. Galvin and Joseph H. O'Neil and was a friend of Governor Benjamin F. Butler.

On September 12, 1899, Galvin resigned as city clerk to become the New England representative for four Colorado-based mining companies.

However, when Priest was hospitalized on December 27, 1899, Galvin was brought back as city clerk pro tempore.

[6] In 1908 he was the Republican nominee for the United States House of Representatives seat in Massachusetts's 10th congressional district.