{{For|the lunar crater|Alphonsus (crater)}} '''Alphonsus''' is a masculine given name and surname which may refer to:

==Given name== * Alphonsus Carroll (1895–1974), New Zealand dual-code international rugby union and rugby league footballer * Alphonsus Cassell (1949–2010), aka Arrow (musician), Montserratian calypso and soca musician * Alphonsus Ciacconius (1530–1599), Spanish Dominican scholar * Alphonsus Cullinan (born 1959), Irish Roman Catholic prelate and Bishop of Waterford and Lismore * Alphonsus Rick Doerr (born 1960), American Paralympic sailor * Alphonsus J. Donlon (1867–1923), American Jesuit * Alphonsus F. D'Souza (1939–2016), Indian Jesuit priest and Roman Catholic bishop * Alphonsus Ebuka (born 2001), Nigerian footballer * Fonse Faour (born 1951), Canadian politician * Alphonsus de Guimaraens (1870—1921), Brazilian poet * Alphonsus Obi Igbeke (born 1962), Nigerian politician * Alphonsus Gerald Irona, 21st century Nigerian politician * Alphonsus Longgap Komsol, 21st century Nigerian politician * Alphonsus Liguori (1696–1787), Roman Catholic Saint * Alphonsus Mathias (1928–2024), Indian Roman Catholic archbishop * Alphie McCourt (1940–2016), Irish-American writer * Alphonsus Uche Mefor (born 1972), British-Nigerian pro-Biafra political activist * Alphonsus Nwosu (born 1944), Nigerian politician, parasitologist, academic, administrator and former Minister of Health * Alphonsus Liguori Penney (born 1924), Canadian Roman Catholic priest * Alphonsus Josephus de Ridder (1882–1960), pen name Willem Elsschot, Belgian writer and poet * Alphonsus Rodriguez (1532–1617), Spanish Jesuit and saint * Alphonsus a Sancta Maria (1396–1456), Spanish historian * Alphonsus Salmeron (1515–1585), Spanish biblical scholar, Catholic priest and one of the first Jesuits * Alphonsus Augustus Sowada (1933–2014), American Roman Catholic bishop, cultural anthropologist and bishop * Alonso Tostado (c. 1410–1455), also known as Alphonsus Tostatus, Spanish theologian, councillor of John II of Castile and briefly bishop of Ávila

==Surname== * Aniekeme Alphonsus (born 1999), Nigerian sprinter and middle-distance runner * Joy Alphonsus (born 1987), Nigerian-born actress

==See also== * Petrus Alphonsi (or Petrus Alfonsus) (1062–1110), Spanish Jewish writer * St. Alphonsus Church (disambiguation)

{{given name|type=both}} Category:Masculine given names