O
- (Lucerne-Land District) Oberrothen
- (Hochdorf District) Oberhinterfeld
- (Lucerne-Land District) Obergummen
- (Willisau District) Oberhofstetten
- (Hochdorf District) Oberwüesti
- (Lucerne-Land District) Ochsenweid
- (Willisau District) Ostergau-Sonnfeld
- (Hochdorf District) Oberhocken
- (Entlebuch District) Oberschnerlen
- (Entlebuch District) Oberbach
- (Lucerne-Land District) Oberlaubach
- (Willisau District) Oberbergbüel
- (Lucerne-Land District) Obergrabacher
- (Entlebuch District) Obermatt
- (Sursee District) Oberdorf
- (Hochdorf District) Ober-Schongau
- (Hochdorf District) Oberebersol
- (Hochdorf District) Ottenhusen
- (Lucerne-Land District) Obernau
- (Lucerne-Land District) Obertal
- (Willisau District) Oberspärbelegg
- (Entlebuch District) Oberchappelbode
- (Willisau District) Oberwaldegg
- (Willisau District) Oberrängg
- (Entlebuch District) Oberhirzmatt
- (Entlebuch District) Oberstaldig
- (Lucerne-Land District) Oberblattig
- (Entlebuch District) Oberstägplatz
- (Lucerne-Land District) Oberhackenrain
- (Entlebuch District) Obergrossegg