Arlequin may refer to:

Harlequin, also spelled Arlequin, a comic servant character Arlequin (band), a Japanese rock band Arlequin (software), population genetics software L'Arlequin, a cinema in Paris Los Arlequíns, Mexican pro-wrestlers Arlequin, Pièce Caractèristique Pour Clarinette Seule, by Louis Cahuzac Cinysca arlequin (C. arlequin) a species of sea snail

See also

Arlequinus, a genus of frogs

Harlequin (disambiguation)