Grimsay (disambiguation)

Grimsay may refer to several islands in Scotland:
 * Grimsay, a tidal island north of Benbecula in the Outer Hebrides
 * Grimsay, South East Benbecula, a tidal island south of Benbecula in the Outer Hebrides
 * Graemsay, one of the Orkney Islands

See also:
 * Grímsey, an island in Iceland
 * Grimsby, a seaport on the Humber Estuary in Lincolnshire, England
 * Grimsøy, a peninsula in Østfold, Norway