Alonzo is both a given name and a Spanish surname. Notable people with the name include:
Mononym
Alonzo (rapper), French singer and hip hop artist, formerly Segnor Alonzo of Psy 4 de la Rime
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 Babers (b. 1961), U.S. athlete Alonzo L. Best (1854–1923), U.S. politician Alonzo Bodden, U.S. comedian Alonzo Church (1903–1995), U.S. mathematician and computer scientist Alonzo Clemons, U.S. autistic savant clay sculptor Alonzo B. Cornell (1832–1904), a Governor of New York Alonzo Drake (1884–1919), English footballer and cricketer Alonzo J. Edgerton (1827–1896), U.S. politician Alonzo Dillard Folger (1888–1941), U.S. politician Alonzo Gee, American basketball player Alonzo A. Hinckley (1870–1936), U.S. official of the Church of Jesus Christ of Latter-day Saints Alonzo Horton (1813–1910), developer of San Diego, California Alonzo Lawrence (b. 1989), American football player Alonzo C. Mather (1848–1941), founder of the Mather Stock Car Company Alonzo J. Mathison (1876–1941) U.S. politician Alonzo Mourning (b. 1970), U.S. basketball player Alonzo Sargent, (fl. 1918) U.S. locomotive engineer Alonzo Swales (1870–1952), British trade unionist Allonzo Trier (born 1996), American basketball player Alonzo Muhlach, Filipino actor Alonzo Williams (born 1957), American DJ
Middle name
Amos Alonzo Stagg (1862–1965), U.S. sports coach
Pia Wurtzbach (born 1989), Filipino beauty queen, Miss Universe 2015
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 Kely Alonzo (born 1995), Bolivian football player Mariano Roque Alonzo (died 1853), President of Provisional Junta of Paraguay from 9 February 1841 to 14 March 1841 Pierre Alonzo (footballer) (born 1940), former French football player
Fictional characters
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