may refer to:
Reigen (play) or La Ronde, a 1900 play by Arthur Schnitzler
Reigen (film), a 1973 adaptation directed by Otto Schenk
Reigen (opera), a 1993 adaptation by Philippe Boesmans
Emperor Reigen, 112th emperor of Japan
Reigen, spin-off manga of Mob Psycho 100.
Reigen (singer), American singer-songwriter