There is one place named Hornsö in Sweden.
All places in the world called "Hornsö".
Näs (17)Boda (17)Sandviken (16)Berg (16)Lund (14)Berga (14)Haga (13)Torp (13)Bäck (13)Näset (13)Åsen (12)Broby (12)Sandvik (12)Kulla (11)Mo (11)Norrby (11)Näsby (11)Råby (10)Holmen (10)Ön (10)Viken (10)Heden (10)Kullen (10)Backa (10)Åby (10)Strand (10)Hov (10)Holm (9)Österby (9)Nyby (9)