Given name

Riannon

“the great and sacred queen”

Riannon is a variant of Rhiannon. One Welsh interpretation is “the great and sacred queen.”

Meaning & origin

What it means

Riannon is a variant of Rhiannon. One Welsh interpretation is “the great and sacred queen.”

Explained through its name family

Where it comes from

Riannon is a variant of Rhiannon. A possible origin is Celtic, although the derivation remains uncertain.

Explained through its name family

The story

Published U.S. birth records include this spelling as early as 1977. This is the earliest published observation available here, rather than a date for the name’s origin. Riannon is a variant of Rhiannon. The history of Rhiannon gives this family its wider story. Rhiannon appears in the Mabinogi, a medieval collection of Welsh legends.

Combines direct and name-family evidence

Riannon through the years

Babies since 1880
250
0 boys · 250 girls
Most popular year
1987
14 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
—
Too few births to compare
02.557.510198020002025Highest share 19870.0
Riannon in U.S. Social Security birth records, 1977–2025, per million girls born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

The most recent published U.S. birth count for girls is 7 in 2006. Later missing counts do not mean the name went unused. Published U.S. population figures for this spelling include 253 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Riannon’s family of names

Riannon has a related form in Rhiannon.

Walk Riannon’s family in the name graph

RiannonRhiannon

The ring: nicknames and forms.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Nicknames & forms 1

Diminutives, pet forms, short forms and variants used alongside the name.

Similar names

If you love Riannon, these share its style, era, origin or sound, from outside its own family.

Royal

Kymberly

“of the royal fortress”

0Not recently recordedCooling

>99% girls

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Kathrina

“one who is pure; virginal”

0Not recently recorded

>99% girls

Royal

Kandis

“a queen” · “one who is white and glowing”

0Not recently recorded

>99% girls

Royal

Charlott

“free man”

0Not recently recorded

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French · Royal

Sigourney

“a woman who conquers” · “a daring queen”

11Very rareRising fast

>99% girls

Royal

Kandice

“a queen” · “one who is white and glowing”

0Not recently recordedCooling

>99% girls

Royal

Kindra

“having royal power; from the high hill”

12Very rareRising fast

>99% girls

Royal

Kathryne

“one who is pure; virginal”

0Not recently recordedCooling

>99% girls

Sibling ideas

Names that share Riannon’s feel without repeating its first letter or rhyming with it.

A brother for Riannon

A sister for Riannon