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