Oléron

Oléron, an island of France, in the Bay of Biscay, at the mouth of the Charente, 11½ m. long and from 3 to 7 broad, is separated from the mainland by a shallow, narrow channel.

Population (circa 1900) given as 17,000.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Oldys, William * Olga, St.
[wait for the fun]
Old Man of the Mountain
Old Man of the Sea
Old Mortality
Old Noll
Oldbuck, Jonathan
Oldbury
Oldcastle, Sir John
Oldenburg
Oldham
Oldys, William
Oléron
Olga, St.
Olifaunt, Nigel
Oliphant, Laurence
Oliphant, Mrs. Margaret
Olivarez, Count d'
Oliver
Olives, Mount of
Ollivier, Émile
Olmütz
Olympia