Fabritius is a North European surname and Latin given name. Bearers of the name include:
- Dutch painter brothers
- Barent Fabritius (1624–1673)
- Carel Fabritius (1622–1654), painted A View of Delft and The Goldfinch
- Johannes Fabritius (1636–1693), mainly painted still lifes
- Danish merchant family
- Just Fabritius (1703–1766), merchant
- Michael Fabritius (1697–1746), merchant and shipbuilder
- Fabritius de Tengnagel (noble family), originating in Brandenburg
- Conrad Fabritius de Tengnagel (1731–1805), merchant and arts patron
- Frederik Michael Ernst Fabritius de Tengnagel (1781–1849), military officer and landscape painter
- Others of the surname
- Bernd Fabritius (born 1965), German Christian Social Union politician
- Carl Ferdinand Fabritius (1637–1673), German landscape painter
- Emil Fabritius (1874–1949), Finnish Olympic shooter
- Laurentius Fabritius (1535–1600), German Catholic bishop
- Ludvig Fabritius (1648–1729) Swedish ambassador to Safavid Iran
- Given name
- Fabritius Cocci (died 1606), Italian Catholic bishop