Allyn

♀ Girl

Pronounced AL-in /ˈæl.ɪn/Medium

Meaning: Allyn is a variant spelling of Alan/Allen, a Celtic/Breton name variously read as 'little rock,' 'handsome,' or 'harmony.' Historically a boys' name and surname, the -yn spelling has been used to feminize it; used here for a girl, we note the lean.Low

In 30 seconds: A feminine take on Alan: Allyn means 'little rock; handsome; harmony' (said 'AL-in'). Usually a boy's name — we note the lean.

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Origin LowEnglish, Celtic

MeaningAllyn is a variant spelling of Alan/Allen, a Celtic/Breton name variously read as 'little rock,' 'handsome,' or 'harmony.' Historically a boys' name and surname, the -yn spelling has been used to feminize it; used here for a girl, we note the lean.

U.S. rank (2025)#12001 ↗ Rising

2025 U.S. births7 girls (0.00% of U.S. girls)

Peak year1951

Total births (all-time)≈ 1,915

Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Allyn is a variant of Alan/Allen, a Celtic/Breton name read as 'little rock,' 'handsome,' or 'harmony,' also a surname. The -yn spelling has been used to feminize it, but it leans strongly male. As a girl's name it is rare, and we note the lean (said 'AL-in').

For girls it appears only rarely in the U.S., with heavier male use. Rare for girls, crisp, and Celtic-rooted.

Did you know? Allyn is a spelling of Alan/Allen — a Celtic name tied to 'little rock,' 'handsome,' or 'harmony' — with the -yn ending sometimes used to make it feel more girlish; it's usually a boys' name, which we note (said 'AL-in').

Overall data confidence 40%

References — Allyn — spelling of Alan; usually boy-leaning

Variations

AlanAllenAlyn

Nicknames

AllyLyn

Famous Bearers

Famous bearers coming soon.

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Emlyn— a like -lyn Celtic-rooted name

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Frequently Asked

What does the name Allyn mean?

Allyn is a spelling of Alan/Allen, read as 'little rock,' 'handsome,' or 'harmony.'

How do you pronounce Allyn?

It's said AL-in /ˈæl.ɪn/ — two syllables, stress on the first.

Is Allyn a boy or girl name?

Allyn is usually a boys' name; used here for a girl, we note the lean.

How popular is Allyn?

Allyn is rare for girls in the U.S. and more common for boys.