Henry Wirt Newkirk (b. 1862) was mayor of Ann Arbor from 1931 to 1933.
Attorney from Luther and Dexter, Michigan, Republican state representative from Osceola and Lake Counties, 1893-1894, Dexter businessman, Washtenaw County probate judge, state representative from Washtenaw County, 1907-1910 and 1917-1918, and mayor of Ann Arbor, 1931-1933.