Australian cities/towns with O
- Omeo
- Ottawa
- oakland
- Olinda
- Ocean Grove
- oakbank
- Oodnadatta
- osborne
- Oklahoma
- Ouyen
- O'connor
- Ormond
- oslo
- Oceana
- oberon
- oxford
- osbourne
- olympic park
- oswald
- oak beach
- Ottowa
- orbost
- Oatlands
- oakden
- osborn
- Okinawa
- Overnewton
- O'halloran Hill
- Ophelia
- ottoway
- Oaktown
- oxley
- oatley
- Oran
- Orion
- ozark
- omaha
- Omar
- O'connell
- Osprey
The words in the list Australian cities/towns with O come from players of the word game City, Country, River.