Index page for lunar features whose names start with the letter O

Italics indicate farside features.

O'Day
-Wilkins- O'Kell (Atlas E)
-Wilkins- O'Neill (+730/ +260)
O'Neill's Bridge (unofficial name)
Oberth
Oblivionis, Lacus
Obruchev
Odii, Lacus
Oenopides
Oersted
Ohm
Oken
Olbers
Olcott
Old Nameless (Apollo-14 site)
Olivier
Olivium, Promontorium (discontinued name?)
Omar Khayyam (in Poczobutt)
Onizuka (crewmember STS-51L)
Opelt
Opelt, Rimae
Oppel, Dorsum
Oppenheimer
Oppolzer
Oppolzer A (very near the point at 0°North/ 0°East)
Oppolzer, Rima
Oresme
Oriani (discontinued name)
Orientale, Mare (Basin)
Orientale Dark Mantle Ring Deposit (aka Mare Pacificus)
Orientale Secondary chains
Oris (see Brisbane, Brisbane Z) (and description below list)
Orlov
Orontius
-Wilkins- Orus (Petavius B)
Osama (craterlet near the D-shaped Ina caldera)
Osiris (craterlet near Mons Argaeus)
Osman (craterlet in Catena Davy)
Ostwald
Owen, Dorsum (near Aratus CA, aka "Lorca")