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