Thomas, Tommy or Tom Walker may refer to:
Entertainment
Thomas Walker (actor) (1698–1744), English actor and dramatist
Thomas Walker (author) (1784–1836), English barrister, police magistrate and writer of a one-man periodical, The Original
Thomas Bond Walker (1861–1933), Irish painter
Tom Walker (singer) (born 1991), British singer-songwriter
Tom Walker (Homeland), a character in the TV series Homeland
Tom Walker, British actor and comedian known for his character Jonathan Pie, a fictional British news reporter
Tom Walker (comedian), Australian comedian, mime and Twitch streamer
Law
Thomas Joseph Walker (1877–1945), Judge for the United States Customs Court
Thomas Glynn Walker (1899–1993), United States federal judge
Thomas Walker (attorney) (born 1964), U.S. attorney
Politics
Thomas Walker (died 1748) (1660s–1748), Member of Parliament for Plympton Erle, 1735–1741
Thomas Walker (merchant) (1749–1817), English political radical in Manchester
Thomas Eades Walker (1843–1899), British Member of Parliament for East Worcestershire, 1874–1880
Thomas Gordon Walker (1849–1917), British Indian civil servant
Thomas Walker (Australian politician) (1858–1932), member of two different state parliaments
Thomas Walker (Canadian politician) (died 1812), Canadian lawyer and politician
Thomas J. Walker (1927–1998), provincial MLA from Alberta, Canada
Thomas Walker (American politician) (1850–1935), Alabama state legislator
Albert Thomas Walker, Canadian politician from Ontario
Sports
Thomas Henry Sumpter Walker(1856–1936), English bicycle racing pioneer
Tom Walker (cricketer) (1762–1831), English cricketer
Thomas Walker (Yorkshire cricketer) (1854–1925), English cricketer
Tom Walker (1900s pitcher) (1881–1944), baseball player
Tom Walker (1970s pitcher) (1948–2023), American baseball player
Tommy Walker (footballer, born 1915) (1915–1993), Scottish footballer and manager
Tom Walker (footballer) (born 1995), English footballer
Other
Thomas Walker (academic) (died 1665), English academic at Oxford University
Thomas Walker (explorer) (1715–1794), American explorer
Thomas Walker (slave trader) (1758–1797), British slave trader
Thomas Walker (died 1805), Irish publisher of Walker's Hibernian Magazine
Thomas Walker (philanthropist) (1804–1886), Australian politician and banker
Thomas Larkins Walker (c.1811–1860), Scottish architect
Thomas Walker (journalist) (1822–1898), English editor of The Daily News
Thomas A. Walker (1828–1889), English civil engineering contractor
T. B. Walker (1840–1928), Minneapolis businessman who founded the Walker Art Center
Thomas William Walker (1916–2010), soil scientist
Thomas Walker (naval officer) (1919–2003), United States Navy officer
Thomas B. Walker Jr. (1923–2016), American investment banker, corporate director and philanthropist
Tom Walker (priest) (1933–2016), Anglican priest and author
Thomas Walker (musicologist) (1936–1995), American professor of music at Princeton University
Thomas J. Walker, namesake of the Thomas J. Walker House in Knoxville, Tennessee
Thomas Walker & Son, manufacturers of nautical instruments, Birmingham, England