Glen Island is an island in Nunavut, Canada. It is located in the Qikiqtaaluk Region's side of the Gulf of Boothia within Committee Bay. It is northeast of Wales Island and west of the mainland's Melville Peninsula.
Glen Island is a large area of land between the head of the Jubilee River and the River Thames at Boulter's Lock near Maidenhead.
The Grade II listed Glen Island House, a riverside Gentleman's residence (now offices for a paper mill), was built in 1869 for Lt. Gen. Sir Roger William Henry Palmer, Bart. (d.1910), an Irish landowner, who was in the Charge of the Light Brigade.
Glen Island may refer to: