Siffleur (French, 'whistler') may refer to:
Siffleur (professional whistler), Siffleur River, rising in the Canadian Rockies Siffleur Falls Siffleur Mountain, in Alberta, Canada Siffleur Wilderness Area
See also Rufous-throated solitaire, known in Dominica as siffleur montagne Siffleuse (1890–1908), a British Thoroughbred racehorse "Siffler sur la colline" ('Whistle on the hill') is a 1968 song by Joe Dassin