Eileen

Where does Eileen come from?

Eileen is an English spelling of Irish Eibhlín, which developed from the Norman French name Aveline. That family leads back through Avelina and Avila to an old Germanic element whose meaning is unknown. Eileen is also sometimes treated as an Irish form of Helen, a separate association that helps explain its familiar connection with light or a torch.

Helen itself probably comes from a Greek word meaning “torch,” although its deeper derivation is debated. The Aveline route gives Eileen a medieval French and Germanic history within its Irish naming tradition. It became more widely used outside Ireland near the end of the nineteenth century.

Eileen Collins and spaceflight

Astronaut Eileen Collins gives the name a distinctive place in space history. Selected by NASA in 1990, she became the first woman to pilot a space shuttle on the 1995 STS-63 mission aboard Discovery. That flight approached the Russian space station Mir.

In July 1999, she commanded Columbia on STS-93, becoming the first woman to command a space shuttle mission. Its principal task was the deployment of the Chandra X-ray Observatory. Columbia launched on July 23 and returned on July 27, with Collins leading a five-person crew.

Her shuttle career included four flights, two as pilot and two as commander. She later commanded Discovery on STS-114 in 2005 and retired from NASA in 2006. The sequence makes her an especially specific namesake: Eileen appears in accounts of both the first female shuttle pilot and the first female shuttle commander.

Eileen Agar and Surrealism

Artist Eileen Agar supplies a contrasting cultural connection. Born in Buenos Aires, she moved to London as a child and later lived in Paris, where she encountered André Breton and other Surrealists. Her work crossed between painting and assemblage, bringing objects and unexpected combinations into her art.

Agar's work appeared in London's International Surrealist Exhibition in 1936. The exhibition brought British artists into conversation with an international movement interested in dreams, chance, and unfamiliar relationships between ordinary things. Her participation places Eileen within a particular moment in twentieth-century art, alongside its later association with exploration and flight through Collins.

Pronunciation and related forms

Eileen is commonly pronounced eye-LEEN, with two syllables and stress on the second. EYE-leen is another established English pronunciation. The final syllable rhymes with green, and the opening has the vowel sound of eye.

Aileen and Ilene are related English-language forms. Irish Eibhlín preserves the spelling behind Eileen, while Aveline and Evelina belong to the wider historical family. Helen represents the separate name with which Eileen has also been associated.

Eileen in the United States

Eileen's best American girls' rank was No. 68 in 1943. Its highest annual count followed in 1947, with 4,251 babies. In 2025 it ranked No. 654, compared with No. 701 in 2020. Its largest American generation dates to the 1940s, although the spelling remains in contemporary use.

How popular is Eileen?

In 2025, Eileen ranked #654 among girls in the United States, with 437 recorded uses. The U.S. birth records first list this spelling for girls in 1882; its largest annual count was 4,251 in 1947. Rankings count each spelling separately. They describe national use, so local familiarity can differ. The popularity chart shows whether the name has remained common, returned after a quieter period, or risen recently.