Eowyn may refer to:

Éowyn, a character from The Lord of the Rings Éowyn (musician) (born 1979), American Christian alternative rock artist Eowyn Ivey (born 1973), American author Storm Éowyn, a storm of the 2024–25 European windstorm season affecting Ireland, the Isle of Man, the United Kingdom and Norway

See also Edwyn Eoin Owain