Periwinkle

Periwinkle may refer to:

Animals
 Periwinkle, a common name for a number of gastropod molluscs in the family Littorinidae
 Common periwinkle (Littorina littorea)
 Blue periwinkle (Nodilittorina unifasciata)
 Rough periwinkle (Littorina saxatilis)
 Periwinkle, a regional name for the caddisfly larva

Plants
The common name of plants in two genera in the family Apocynaceae:
 Catharanthus or Madagascar periwinkles
 Vinca or European periwinkles

Other uses
 Periwinkle (color), a pale shade of blue
 Periwinkle, a character in Blue's Clues
 Periwinkle, a character in The Bellflower Bunnies
 Periwinkle, a character in Tinker Bell and the Secret of the Wings
 Periwinkle, the main character in Patricia A. McKillip's book, The Changeling Sea

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