Joseph Underwood may refer to:
Joseph R. Underwood (1791–1876), lawyer, judge, U.S. Representative and Senator from Kentucky Joseph Underwood (merchant) (1779–1833), Australian merchant Joseph Edwin Underwood (1882–1960), civil engineer, land surveyor and political figure in Saskatchewan, Canada Joseph W. Underwood (born 1953), American teacher and football official Joseph F. Underwood, American politician, member of the Maine House of Representatives since 2020