Home › Baby Names Directory › Brynnan

Brynnan

♀ Girl

Pronounced BRIN-uhn /ˈbrɪn.ən/Low

Meaning: Brynnan is read two ways: as a spelling of the Irish surname Brennan, from O Braonain 'descendant of Braonan' with braon meaning 'drop, moisture,' and as a blend built on the Welsh Bryn, 'hill.' Used for a girl, it leans on that soft, Celtic sound.Low

In 30 seconds: Brynnan is a variant of Brennan, an Irish surname from O Braonain, or a Welsh Bryn blend. It appears thinly in US records in the early twenty-tens (said BRIN-uhn).

💕 Browse more names

Origin LowIrish, Welsh

MeaningBrynnan is read two ways: as a spelling of the Irish surname Brennan, from O Braonain 'descendant of Braonan' with braon meaning 'drop, moisture,' and as a blend built on the Welsh Bryn, 'hill.' Used for a girl, it leans on that soft, Celtic sound.

U.S. rank (2019)#11552 ↗ Rising

2019 U.S. births8 girls (0.00% of U.S. girls)

Peak year2011

Total births (all-time)≈ 165

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

Brynnan sits between two Celtic threads: the Irish Brennan, a surname from O Braonain tied to braon, 'drop or moisture,' and the Welsh Bryn, 'hill.' As a modern girl's name it borrows the look of both.

It was never common, given to only about fifteen girls a year at its peak in the early twenty-tens. A girl named Brynnan then is still young, her name part of the wider fashion for Bryn- sounds.

Did you know? The Bryn sound of Welsh names crossed with the Irish surname Brennan to give parents a name that reads as gently Celtic without belonging firmly to either tradition.

Overall data confidence 35%

References - Brynnan — Variant of Brennan (Irish O Braonain) / Welsh Bryn 'hill' blend; both routes noted; plain-Latin only.

Variations

BrennanBrennenBrynanBrynnenBrenna

Nicknames

BrynBrynnie

Famous Bearers

Famous bearers coming soon.

If you like Brynnan…

Brennan— the surname source of this name

Bryn— the Welsh 'hill' element behind it

Brenna— a same-sound feminine cousin

Brynlee— a same-era Bryn- girl's name

Explore names like Brynnan

By thememodern rare irish welsh

All themes →All meanings →All origins →

Frequently Asked

What does the name Brynnan mean?

It is a variant of Brennan, an Irish surname from O Braonain, or a blend built on the Welsh Bryn, 'hill.'

How do you pronounce Brynnan?

It is said BRIN-uhn /ˈbrɪn.ən/ - two syllables, stress on the first.

Is Brynnan a boy or girl name?

Brynnan is used as a girl's name.

How popular is Brynnan?

It was always rare in the United States, given to only about fifteen girls a year even at its peak in the early twenty-tens.