orioles
Ouzo
Oreo
The names of cars start with letters of the alphabet. Some of the names are Acura, Chevrolet, Kia and Toyota.
oliver, olivia, ozzie, oz.
octopus, ocelot, orca,
Louis Oostuizen
Obi-Wan
oak tree Okame Cherry
Orange Ichneumonid Wasp and Owlfly are insects. They begin with the letter o.
Oldsmobile and Opel are the only car manufacturers I can name that start with O.
O.J. Simpson