Rhys

♂ Boy

Pronounced REESE /riːs/High

Meaning: From Welsh Rhys meaning ardor, enthusiasm, or passion; a historic Welsh royal and warrior nameHigh

In 30 seconds: Rhys is a bold Welsh name meaning 'enthusiasm' with a deceptively simple spelling that packs centuries of Welsh royal heritage into a single crisp syllable.

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Origin HighWelsh

MeaningFrom Welsh Rhys meaning ardor, enthusiasm, or passion; a historic Welsh royal and warrior name

U.S. rank (2025)#412 ↘ Falling

2025 U.S. births778 boys (0.04% of U.S. boys)

Peak year2024

Total births (all-time)≈ 14,325

Popularity in the U.S. · SSA data

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

History & Origin

Rhys is one of the oldest Welsh given names, from the word meaning ardor or enthusiasm. It was borne by Welsh kings including Rhys ap Tewdwr and Rhys ap Gruffudd, making it a name of genuine royal pedigree.

Rhys has been popular in Wales for centuries and gained international recognition in the late 20th and 21st centuries, particularly in the United States and Australia, where its sound-to-spelling contrast adds charm.

Did you know? The unusual spelling of Rhys — where rh represents a voiceless Welsh r and y serves as a vowel — reflects genuine Welsh phonology rather than a quirky modern choice, giving the name authentic Celtic gravitas.

Overall data confidence 95%

Behind the Name — Rhys — etymology and Welsh historyU.S. Social Security Administration — popularity data

Variations

ReeseRees

Nicknames

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Famous Bearers

★Rhys ap Gruffudd (c. 1132–1197)
Last independent ruler of Deheubarth in Wales, known as The Lord Rhys.
★Jonathan Rhys Meyers (1977–present)
Irish actor known for his roles in The Tudors and Mission: Impossible III.

If you like Rhys…

Brynn— shares the crisp Welsh one-syllable heritage and the same modern elegant brevity

Evan— Welsh form of John with the same deep Celtic roots and crossover American appeal

Dylan— another beloved Welsh name with the same music and mythology background

Cadence

Frequently Asked

What does the name Rhys mean?

Rhys means ardor, enthusiasm, or passion from Welsh; it is a historic royal and warrior name.

How do you pronounce Rhys?

It is said REESE /riːs/ — one syllable; the rh is a Welsh sound approximated as r in English.

Is Rhys Welsh?

Yes, Rhys is a traditional Welsh name with over a thousand years of royal history in Wales.

Is Rhys the same as Reese?

Reese is the anglicized form of Rhys; both are used as given names but Rhys is the original Welsh spelling.