Kenzaburo Oe, modern Japanese novelist

Ottoman Empire, a former national entity that, at various times, included Turkey, the Balkans, Arabia, and most of North Africa.

Old English language

Outlook Express, an email program

Orient Express, a famous train

Œ, a letter named œthel, used in the modern French and medieval Latin alphabets

Oe, a model railway gauge

Olathe East High School high school in Olathe, Kansas

Opportunistic encryption

Old English 800 malt liquor

Ophryocystis elektroscirrha, a protozoan parasitic on butterflies

Overseas experience, a New Zealand term for extended working holidays

The open-mid front rounded vowel, represented by the symbol œ in the International Phonetic Alphabet

Okean Elzy, a Ukrainian rock band

Asia Overnight Express IATA airline designator

Oersted, a unit of magnetic induction

Hikari Oe, son of Kenzaburo Oe

Oe District, Tokushima, a district of Japan

Tatsuya Oe, the real name of electronic musician Captain Funk

Oe, a digraph

Old Etonian, a former pupil at Eton College, England