There are 13 places named O'Brien Lake in Canada.
All places in the world called "O'Brien Lake".
Windsor (4)
Wellington (4)
Borden (3)
Princeton (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Kingston (3)
Victoria (3)
Havelock (3)
Centreville (3)
Sidney (3)
Armstrong (2)
Buffalo (2)
Churchill (2)
Duvernay (2)
Granville (2)
Lancaster (2)
Mountain View (2)
Read Island (2)
Saint Marys (2)
Stirling (2)
Watson (2)
Bedford (2)
Canyon City (2)
Cowley (2)