James, Jim, or Jimmy Martin may refer to:

• James Cullen Martin (1928–1999), American chemist
• James E. Martin (1932–2017), president of the University of Arkansas and Auburn University
• James Kirby Martin (born 1943), American historian
• James R. Martin II, chancellor of North Carolina A&T State University

• Jimmy Martin (1927–2005), American bluegrass musician
• James Martin (Irish actor), Northern Irish actor from Oscar winning An Irish Goodbye
• James Martin (Scottish actor) (1931–2025), Scottish actor on Still Game
• James R. Martin (born 1951), American producer and director of documentaries Wrapped In Steel and Fired-up!
• Jim Martin (musician) (born 1961), American guitarist formerly with Faith No More
• Jim Martin (puppeteer) (born 1960), American puppeteer on Sesame Street
• James and Tom Martin (born 1977), English twin musicians
• Charra Tea, Northern Irish drag queen born James Martin

• James Loren Martin (1846–1915), U.S. federal judge
• James Robert Martin Jr. (1909–1984), U.S. federal judge
• James Martin (attorney), U.S. attorney in Missouri

• James Green Martin (1819–1878), Civil War Confederate brigadier general
• James Martin II (1826–1918), American Medal of Honor recipient
• James Fitzgerald Martin (1876–1958), officer of the British Army
• Jim Martin (Australian soldier) (1901–1915), youngest Anzac to serve at Gallipoli
• James Stewart Martin (author), United States Department of Justice official in Germany after World War II
• James Martin (British Army officer) (born 1973)

• Sir James Martin (premier) (1820–1886), premier of New South Wales
• James Martin (South Australian politician) (1821–1899), engineer and politician of Gawler, South Australia
• James Martin (New South Wales politician, born 1850) (1850–1898), member of the New South Wales Legislative Assembly for South Sydney and Sydney-Bligh
• James Martin (Queensland politician) (born 1981), Queensland politician (elected 2021)

• James Morris Martin (1845–1902), Canadian politician

• James Martin (Irish politician) (1905–1969), Fianna Fáil Senator from 1965 to 1969

• James Martin (1738–1810), British banker and politician who sat in the House of Commons for 31 years from 1776 to 1807
• James Martin (1807–1878), British Liberal Party politician and banker
• James Martin (trade unionist) (1850–1933), British trade unionist and politician

• James Stewart Martin (congressman) (1826–1907), U.S. representative from Illinois
• Jimmy Martin (politician) (1938–2019), American politician from Alabama
• James D. Martin (1918–2017), U.S. Representative from Alabama
• Jimmy Leawood Martin (born 1934), American politician in South Carolina
• James G. Martin (born 1935), North Carolina governor
• Jim Martin (Georgia politician) (born 1945), member of the Georgia House of Representatives
• James Martin (Maine politician) (born 1965), member of the Maine House of Representatives
• James Martin (mayor), Republican mayor of Ansonia, Connecticut, 1969–1971
• James Martin (South Carolina politician) (died 1868), member of the South Carolina House of Representatives

• James S. Martin (evangelical minister) (fl. 1913–1914), American anti-Mormon preacher
• James J. Martin (priest) (born 1960), American Jesuit priest and writer
• James A. Martin (1902–2007), American Jesuit priest

• James Martin (Australian cricketer) (1851–1930), Australian cricketer
• James Martin (Scottish cricketer) (1901–1988), Scottish cricketer and administrator
• Jim Martin (Australian footballer) (1884–1940), Australian rules player at multiple clubs
• James Martin (footballer, born 1893) (1893–1940), Scottish footballer
• James Martin (footballer, born 1898) (1898–1969), English footballer
• Jimmy Martin (golfer) (1924–2000), Irish golfer
• Jim Martin (American football) (1924–2002), College Football Hall of Fame member
• James Martin (American football) (1944–2009), American football and baseball coach, college athletics administrator
• Jimmy Martin (American football) (born 1982), National Football League guard
• James Martin (rugby league) (born 1987), British rugby player
• James Martin (footballer, born 1994), Scottish footballer
• James Martin (footballer, born 1998), English footballer
• Jimmy Martin (judoka), American judoka

• James Martin (philosopher) (fl. 1577), Scottish writer
• James Martin (convict) (c. 1760–?), convict transported to New South Wales, author of the only extant First Fleet convict account of life in the colony
• James J. Martin (historian) (1916–2004), American historian, wrote on anarchism
• James Martin (author) (1933–2013), computer systems design author, writer
• James Conroyd Martin (fl. 2006–2016), historical fiction writer

• James Ranald Martin (1796–1874), surgeon in India
• Sir James Martin (engineer) (1893–1981), inventor of the modern aircraft ejection seat
• James Slattin Martin Jr. (1920–2002), project manager for the Viking program
• James Martin (chef) (born 1972), British celebrity chef
• James Martin (photographer), American photojournalist
• James Purdon Martin (1893–1984), British neurologist
• Jim Martin (ombudsman), Scottish public servant
• Spider Martin (1939–2003), American photographer
• James Martin & Co, Australian engineering firm
• James Henry Martin (1835–1909), British shipowner and entrepreneur
• James David Martin (born 1971), American serial killer

• James Marten (born 1984), American football player
• James Edgar Martine (1850–1925), U.S. Senator from New Jersey
• Jamie Martin (disambiguation)
• James Martin House (disambiguation)
• James S. Martin (disambiguation)
• Martin High School (Arlington, Texas), also known as James Martin High School