Thomas Williamson

Thomas or Tom Williamson may refer to:
 * Tom Williamson, Baron Williamson (1897–1983), British trade union leader and Member of Parliament
 * Tom Williamson (English footballer) (born 1984), English footballer
 * Tom Williamson (Australian footballer) (born 1998), Australian footballer
 * Thomas Williamson (soccer) (born 1999), American soccer player
 * Tom Williamson (Scottish footballer) (1901–1988), Scottish footballer
 * Thomas Williamson (Australian politician) (1853–1921), New South Wales politician
 * Tom Williamson (golfer) (1880–1950), English professional golfer
 * Thomas Smith Williamson (1800–1879), American physician and missionary
 * Tom Williamson (actor) (born 1990), American actor
 * Thomas Wilson Williamson (1887–1974), American architect
 * Thomas Williamson (surgeon) (1815–1885), Scottish surgeon and medical officer of health
 * Thomas Andrew Williamson, American serial killer