There are 6 places named Duncan Island in Canada.
All places in the world called "Duncan Island".
Wellington (4)
Windsor (4)
Victoria (3)
Kingston (3)
Havelock (3)
Sidney (3)
Centreville (3)
Borden (3)
Princeton (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Selkirk (3)
Tracadie (3)
Saint Andrews (3)
Souris (2)
Albany (2)
Bon Accord (2)
Chatham (2)
Dorset (2)
Glenwood (2)
Minto (2)
Port Maitland (2)
Saint-Jean (2)
Saint Vincent (2)
Swift Current (2)
Weston (2)
Beaumont (2)
Caledonia (2)