Katrin is a feminine given name. It is a German and Swedish contracted form of Katherine. Katrin may refer to:
In sports:
- Katrin Apel (born 1973), German biathlete
- Katrin Beinroth (born 1981), German judoka
- Katrin Borchert (born 1969), German-born Australian sprint canoer
- Katrin Dörre-Heinig (born 1961), German long-distance runner
- Katrin Engel (born 1984), Austrian handball player
- Katrin Green, German athlete
- Katrin Kauschke (born 1971), German field hockey player
- Katrin Kieseler, German-born, Australian sprint canoer
- Katrin Kliehm (born 1981), German football player
- Katrin Krabbe (born 1969), German athlete
- Katrin Krüger (born 1959), German handball player
- Katrin Mattscherodt (born 1981), German long track speed skater
- Katrin Meißner (born 1973), German freestyle swimmer
- Katrin Olsen (born 1972), Danish–Faroese rower
- Katrin Rutschow-Stomporowski (born 1975), German rower
- Katrin Schreiter (born 1969), German sprinter
- Katrin Wagner-Augustin (born 1977), German sprint canoer
- Katrin Zeller (born 1979), German cross country skier
- Katrin Zimmermann (born 1966), German backstroke swimmer
In television and film:
- Katrin Cartlidge (1961–2002), British actress
- Katrin Ottarsdóttir (born 1957), Faroese movie director
- Katrin Saß (born 1956), German actress
In other fields:
- Katrin Fridriks (born 1974), Icelandic artist
- Katrin Göring-Eckardt (born 1966), German politician
- Katrin Himmler (born 1969), German writer
- Katrin Koov (born 1973), Estonian architect
- Katrin Saks (born 1956), Estonian politician
- Katrin Siska (1983), Estonian musician
- Katrin Wehrheim, German-American mathematician