Shannon

Shannon: an Irish river name shared by women and men

Shannon comes from the River Shannon, Ireland’s longest river, called an tSionainn in Irish. Its deeper origin may be connected with an Old Irish word meaning “old” or “ancient.” English says SHAN-un, with two syllables and the emphasis at the beginning.

The given name has substantial American histories for both girls and boys. Astronaut Shannon Lucid supplies a particularly important modern association through her long-duration mission aboard the Russian space station Mir.

The river and Sionann

The river’s name is connected with the legendary figure Sionann. Some tellings explain the river as named for her, although the figure’s name may instead have developed from the older river name.

The possible connection with Old Irish sen, “old,” belongs to the river’s deeper etymology. Shannon’s immediate given-name origin is the recognizable river name, rather than a newly created English word or a shortening of a longer personal name.

It became common as an American given name after the 1940s. Both masculine and feminine use developed, with girls eventually forming the much larger American series. That shared history is part of Shannon’s identity even though later popularity differed considerably by sex.

Shannon Lucid’s six months in space

Shannon Lucid joined NASA in 1978 as one of its first six female astronauts. In 1996, she lived and worked aboard Mir with Russian cosmonauts, taking part in experiments during a long stay in microgravity.

Her work included checking wheat plants growing in the station’s greenhouse. Alongside life-science studies, the mission offered experience of the practical and interpersonal demands of living in orbit for months rather than days.

Lucid returned to Earth aboard Atlantis in September 1996 after 188 days in space. At the time, that was a record for an American and for a woman. Lessons from the mission later helped NASA prepare for long-duration work on the International Space Station.

She subsequently worked in Mission Control as a CAPCOM, communicating with astronauts in orbit, and served as NASA’s chief scientist. Her full name therefore connects Shannon with both a memorable spaceflight and the continuing scientific work surrounding human exploration.

Pronunciation and related spellings

SHAN-un begins with the sh sound and the short a heard in “cat.” The second syllable is lighter, and the double n does not add a third syllable.

Shannen and Shanon are related spellings, while Shana and Shanna also appear within the name’s wider group of forms. Shannon itself keeps the familiar English spelling of the Irish river.

Popularity in the United States

Among American girls, Shannon reached its largest count in 1970, with 13,547 births. Its best rank came in 1976, at number seventeen. It ranked 1,063rd in 2015, 1,956th in 2020, and 2,405th in 2025.

For boys, both the best rank and largest count came in 1972: number ninety-four, with 3,014 births. The boys’ ranking was 3,030th in 2025, well below its strongest twentieth-century period.

How popular is Shannon?

In 2025, Shannon ranked #2,405 among girls in the United States, with 75 recorded uses. The U.S. birth records first list this spelling for girls in 1912; its largest annual count was 13,547 in 1970. 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.