Alonzo is both a given name and a Spanish surname. Notable people with the name include:

Given name

  • Alonzo de Barcena, 16th-century Spanish Jesuit missionary and linguist
  • Alonzo de Santa Cruz (–1567), Spanish cartographer, mapmaker, instrument maker, historian and teacher
  • Alonzo Addae (born 1997), Canadian football player
  • Alonzo Babers (b. 1961), American sprinter
  • Alonzo L. Best (1854–1923), American politician
  • Alonzo Bodden, American comedian
  • Alonzo Church (1903–1995), American mathematician and computer scientist
  • Alonzo Clemons, American autistic savant clay sculptor
  • Alonzo B. Coons (1841–1914), American lawyer and politician
  • Alonzo B. Cornell (1832–1904), a governor of New York
  • Alonzo Drake (1884–1919), English footballer and cricketer
  • Alonzo J. Edgerton (1827–1896), American politician
  • Alonzo Dillard Folger (1888–1941), American politician
  • Alonzo Gee, American basketball player
  • Alonzo A. Hinckley (1870–1936), American official of the Church of Jesus Christ of Latter-day Saints
  • Alonzo Horton (1813–1910), developer of San Diego, California
  • Alonzo Jackson (b. 1980), NFL football player
  • Alonzo King (b. 1952), American dancer and choreographer
  • Alonzo Lawrence (b. 1989), American football player
  • Alonzo C. Mather (1848–1941), founder of the Mather Stock Car Company
  • Alonzo J. Mathison (1876–1941), American politician
  • Alonzo B. May (1906–1968), American economist
  • Alonzo Mourning (b. 1970), American basketball player
  • Alonzo Muhlach (b. 2010), Filipino actor
  • Alonzo W. Pond (1894–1986), American archaeologist and speleogist
  • Alonzo Sargent, (fl. 1918), American locomotive engineer
  • Alonzo Saclag,(1942–2025), Filipino musician and dancer
  • Alonzo Smith (1842–1927), Union soldier, recipient of the Medal of Honor
  • Alonzo Swales (1870–1952), British trade unionist
  • Allonzo Trier (born 1996), American basketball player
  • Alonzo Williams (born 1957), American DJ
  • Alonzo Williams (born 1963), American football player

Surname

  • Anne-Marie Alonzo (1951–2005), Canadian playwright, poet, novelist, critic and publisher
  • Bea Alonzo (born 1987), Filipino actress and model
  • Chad Alonzo, Filipino basketball player
  • Chinggoy Alonzo (1950–2017), Filipino actor
  • Jérôme Alonzo (born 1972), French football (soccer) player
  • John A. Alonzo (1934–2001), U.S. cinematographer
  • Mariano Roque Alonzo (died 1853), President of Provisional Junta of Paraguay from 9 February 1841 to 14 March 1841
  • Pierre Alonzo (footballer) (1940–2024), former French football player

Fictional characters

  • Alonzo Quixano, the protagonist of the novel Don Quixote de la Mancha by Miguel de Cervantes
  • Alonzo, from Disney's 101 Dalmatians
  • Mr Alonzo Smith, played by Leon Ames, and Alonzo 'Lon' Smith Jr., played by Henry H. Daniels Jr., from Meet Me in St. Louis (1944)
  • Alonzo (cat), in T. S. Eliot's poetry and the musical CATS
  • Alonzo Todd, cousin of Peter Todd in the Billy Bunter books
  • Pierre Alonzo, a pseudonym of Richard E. Hughes
  • Alonzo Harris, played by Denzel Washington in Antoine Fuqua's 2001 crime-thriller Training Day

See also

  • Alonso
  • Alfonso
  • Lonzo