Valentinus is a Roman masculine given name derived from the Latin word "valens" meaning "healthy, strong". It may refer to:

People

Churchmen

• Pope Valentine (died 827)

• Saint Valentine, 3rd century Christian saint

• Valentinus (Gnostic) (died c. 150), early Christian gnostic theologian

• Valentinus Paquay (1828–1905), Friar Minor

• Valentinus Smalcius (1572–1622), German Socinian theologian

Emperors and pretenders

• Valentinus (rebel), 4th-century Roman exile who attempted a conspiracy in Roman Britain

• Valentinus (usurper) (died 644), Byzantine general and usurper, father of empress Fausta

Scholars

• Basilius Valentinus, 15th century monk from Erfurt who may have described bismuth

• Valentinus Lublinus (16th-century–16th-century), 16th-century Polish physician and editor

• Valentinus Otho (died 1603), German mathematician and astronomer

• Valentinus Nabodus (1523–1593), German mathematician, astronomer and astrologer

Biology

• Anacyclus valentinus, a species of aster

• Ischnocolus valentinus, a small, old-world tarantula

• Squalius valentinus, a species of freshwater fish in the carp family Cyprinidae

See also

• Valentin, given name

• Valentina (given name), the feminine of Valentinus

• Valentine (disambiguation)

• Valentinian (disambiguation)

• Bálint, the Hungarian version