Systematic theologians

Christian theologian, philosopher, and saint (354–430)

Italian Dominican friar, philosopher, Catholic priest, and Doctor of the Church (1225–1274)

French Protestant reformer (1509-1564)

Origen of Alexandria (), also known as Origen Adamantius, was an early Christian scholar, ascetic, and theologian who was born and spent the first half of his career in Alexandria. He was a prolific writer who wrote roughly 2,000 treatises in multiple branches of theology, including textual criticism, biblical exegesis and hermeneutics, homiletics, and spirituality. He was one of the most influential and controversial figures in early Christian theology, apologetics, and asceticism. He has been described by John Anthony McGuckin as "the greatest genius the early church ever produced".

German reformer (1497-1560)

Christian monk, priest, hymnographer and apologist (675/6-749)

Bonaventure ( ; ; ; born Giovanni di Fidanza; 1221 – 15 July 1274) was an Italian Catholic Franciscan bishop, cardinal, scholastic theologian and philosopher.

Swiss Protestant theologian (1886-1968)

German theologian, philosopher, and biblical scholar (1768-1834)

Swiss Catholic priest, theologian and author (1928-2021)

German-American theologian and philosopher

Tatian of Adiabene, or Tatian the Syrian or Tatian the Assyrian, (; ; ; ; – ) was an Assyrian Christian writer and theologian of the 2nd century.

German Catholic theologian (1904–1984)

French Reformed Protestant theologian, reformer and scholar (1519-1605)

Russian Orthodox Christian theologian, philosopher, priest and economist (1871–1944)

Swiss Catholic theologian (1905–1988)

German Reformed theologian (1926–2024)

Belgian theologian (1914-2009)

English Franciscan theologian and philosopher (c.1185-1245)

German theologian (1928–2014)

English bishop and Anglican Divine

Swiss theologian (1889–1966)

bishop of the Roman Catholic Church, author, scholar and Catholic evangelist.

German theologian (1822-1889)

Northern Irish theologian, Anglican priest, and academic (born 1953)

Lutheran theologian and reformer

English Protestant divine, philosopher, and controversialist

American theologian

German theologian (1887–1967)

American Presbyterian theologian (1797-1878)

Canadian theologian (1926-2020)

Protestant theologian (1913–2007)

German theologian (1912–2001)

Catholic theologian and Cardinal-deacon

German theologian (1859–1935)

German theologian (1934–2021)

American theologian (1938–2018)

German theologian (1900–1968)

American theologian (1931–2016)

Dutch-American philosopher and theologian

American theologian

Swiss theologian (1868-1945)

Norwegian theologian (1822–1894)

Belgian theologian, protestant reformer (1522–1567)

British philosopher

Syrian gnostic around 125 Ad

American theologian (1950–2005)

South African theologian

American theologian (1930–2017)

Dutch theologian (1889-1975)

British Methodist cleric (1729-1785)

German Catholic theologian and biblical scholar (1928–2018)

Czech philosopher, theologian, writer and university professor (1922-2004)

English-born Irish Dominican priest, theologian and philosopher (1926-2001)

American Methodist Episcopal bishop (1834-1903)

Finnish professor

American theologian (1928–2010)

British theologian

American theologian (1934-2014)

Canadian musician