Joseph Williamson, English politician, Secretary of State for the Northern Department (b. 1633)
Joseph Williamson may refer to:

Joseph Williamson (English politician) (1633–1701), English politician

Joseph Williamson (philanthropist) (1769–1840), British tobacco magnate, directed construction of Williamson Tunnels

Joseph Williamson (Maine politician) (1789–1854), American politician in Maine