Ouzo is a Greek aperitif
Octopus, Ocean, Orca, Otter, Oyster
sterol
An Italian company name that begins with "R" and ends with "o" is Roncato.
Ohio
okra
Ohio
Georgia O'Keefe was an American artist. Her name begins with the letter O.
Oyster
Oryx.
Oman
· Octopus
· Oribi