There is one place named Sinclair Islands in Canada.
All places in the world called "Sinclair Islands".
Wellington (4)
Windsor (4)
Victoria (3)
Kingston (3)
Havelock (3)
Sidney (3)
Centreville (3)
Princeton (3)
Borden (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Radisson (2)
Saint Louis (2)
Stanley (2)
Waterloo (2)
Alma (2)
Boundary (2)
Chipman (2)
Durham (2)
Grand Falls (2)
Laflèche (2)
Morden (2)
Newport (2)
Rosedale (2)
Seaforth (2)