Ignatius is a male given name and a surname. Notable people with the name include:

Given name

Religious

• Ignatius of Antioch (35–108), saint and martyr, Apostolic Father, early Christian bishop
• Ignatius of Constantinople (797–877), Catholic and Eastern Orthodox saint, Patriarch of Constantinople
• Ignatios the Deacon (780/790 – after 845), Byzantine bishop and writer
• Ignatius of Bulgaria, patriarch in 1272–1277
• Ignatius Brianchaninov (1807–1867), Russian Orthodox saint, bishop and ascetical writer
• Ignatius of Jesus (1596–1667), Italian Catholic missionary friar
• Ignatius of Laconi (1701–1781), Italian Catholic saint
• Ignatius of Loyola (1491–1556), Basque Catholic saint and founder of the Society of Jesus
• Ignatius of Moscow (1540–1620), Russian Orthodox Patriarch
• Ignatius Moses I Daoud (or Moussa Daoud) (1930–2012), Syrian Catholic Patriarch
• Ignatius Zakka I Iwas (born 1933), Syriac Orthodox Patriarch
• Ignatius III Atiyah, 17th-century Melkite Greek Catholic Patriarch of Antioch
• Ignatius III David, 13th-century Syriac Orthodox Church Patriarch
• Ignatius IV Sarrouf (1742–1812), Melkite Greek Catholic Patriarch of Antioch
• Ignatius IV (Hazim) of Antioch (1921–2012), Greek Orthodox Patriarch of Antioch
• Ignatius V Qattan (1756–1833), Melkite Greek Catholic Patriarch of Antioch
• First name of all the Syrian Catholic Patriarchs of Antioch since the 15th century
• Ignatius Suharyo Hardjoatmodjo (born 1950), Indonesian prelate and current archbishop of Jakarta
• Ignatius Phakoe (1927–1989), Lesotho Roman Catholic bishop

Other

• Ignatius Kutu Acheampong (1931–1979), Ghanaian military ruler
• Ignatius Bernstein (1846–1900), Russian railroad engineer
• Ignatius Bonomi (1787–1870), British architect
• Ignatius Valentine Chirol (1852–1929), British writer and diplomat
• Ignatius Chombo (born 1952), Zimbabwean politician
• Ignatius L. Donnelly (1831–1901), American politician and writer
• Arthur Ignatius Conan Doyle (1859–1930), British writer and physician
• Ignatius J. Galantin (1910–2004), American admiral
• Ignatius Ganago (1999-), Cameroonian professional footballer
• Ignatius Joseph Kasimo Hendrowahyono (1900–1986), Indonesian politician
• Ignatius Jones (born 1957), Australian singer and producer
• Ignatius K. Musaazi (1905–1990), Ugandan politician
• Ignatius Leong (born 1956), Singaporean Chess Organizer
• Ignatius O'Brien, 1st Baron Shandon (1857–1930), Irish lawyer
• Igantius Xavier Pereira (1888–1951), Indian Tamil-Sri Lankan businessman and politician
• Ignatius Sancho (1729–1780), British writer
• Ignatius Scoles (1834–1896), British architect, priest and writer
• Ignatius Shixwameni (born 1966), Namibian politician
• Ignatius Zhuwakiyi (born 1969), Zimbabwean sculptor

Surname

• Adi Ignatius (born 1959), American journalist
• David Ignatius (born 1950), American journalist and writer
• Hannes Ignatius (1871–1941), Finnish general
• Karl Ferdinand Ignatius (1837–1909), Finnish politician
• Paul Ignatius (born 1920), American administrator

Fictional characters

• Ignatius, in the video game Fire Emblem Fates
• Dr. Ignatius "Iggy" Frome, psychiatrist in TV series New Amsterdam
• Ignatius Gallaher, in the short story "A Little Cloud" by James Joyce
• Ignatius Mortimer Meen, the villain in the 1995 video game I.M. Meen
• Ignatius Martin Perrish, in Horns by Joe Hill and the film adaptation
• Ignatius J. Reilly, in A Confederacy of Dunces by John Kennedy Toole
• Horatio Thelonious Ignacious Crustaceous Sebastian, in Disney’s 1989 film The Little Mermaid
• Percy Ignatius Weasley, in Harry Potter by J.K. Rowling