David Baker may refer to:

• David Baker (composer) (1931–2016), American symphonic jazz composer
• David Baker (singer), former lead singer for Mercury Rev
• David Baker (poet) (born 1954), American poet
• David Erskine Baker (1730–1767), English drama critic
• David Aaron Baker (born 1963), American actor and audiobook narrator
• David Baker (born 1931), Australian film director and writer of Libido
• David James Baker, American filmmaker

• David Gordon Baker (1884–1958), justice of the South Carolina Supreme Court
• David J. Baker (1792–1869), US Senator from Illinois
• David Hume Baker (1841–1916), state legislator in Kentucky and then Florida
• David J. Baker Jr. (1834–1899), American judge, son of David J. Baker
• David L. Baker, justice of the Iowa Supreme Court
• David Martin Baker (1923–2010), Republican member of West Virginia State House of Delegates
• Dave Baker (Minnesota politician) (born 1962), Minnesota politician
• David Baker (activist), American activist and founder of Community Against Pollution
• Dave Baker (Kansas politician) (born 1955), member of the Kansas House of Representatives

• Augustine Baker (1575–1641), English Benedictine mystic, born David Baker
• David Bristow Baker (1803–1852), English religious writer

• David Baker (biochemist) (born 1962), American biochemist
• David H. Baker (animal nutritionist) (1939–2009), American animal nutritionist
• David Baker (aerospace engineer), aerospace engineer, co-author of the Mars Direct proposal
• David Baker-Gabb, ornithologist
• David Baker (author) (born 1944), British space scientist and author

• Dave Baker (American football) (1937–2002), American football player
• Dave Baker (baseball) (born 1956), baseball player
• David Baker (cricketer, born 1935) (1935–2021), English cricketer
• David Baker (cricketer, born 1945), English cricketer
• David Baker (cyclist) (born 1965), British Olympic mountainbike racer
• David Baker (track cyclist) (born 1965), English Commonwealth Games cyclist
• Paul Baker (footballer) (David Paul Baker, born 1963), English professional footballer
• C. David Baker (born 1953), former President & CEO of the Pro Football Hall of Fame; former commissioner of the Arena Football League

• David Baker (architect) (born 1949), American architect
• David Baker (academic and musician) (born 1952), British academic librarian and organist
• David William Baker (born 1959), British businessman
• David Baker (detective), introductory use of DNA profiling
• David ODB Baker (born 1972), American professional poker player
• David Bakes Baker (born 1986), American professional poker player