Congratulations in Welsh
Llongyfarchiadau
In Welsh, the phrase to know first is "Llongyfarchiadau!" (Congratulations!). The others are below, each with a note on when to use it.
Congratulations in Welsh is Llongyfarchiadau. Below are the word itself, the shorter "well done" and "fair play", and the Welsh for a wedding. Each phrase comes with a short note on when to use it.
Greetings
Llongyfarchiadau!
Congratulations!
For any good news.
Da iawn!
Well done!
Literally "very good".
Chwarae teg!
Fair play!
Used to give someone credit, as in English "fair play to you".
Useful words
priodas
wedding; marriage
For a wedding card.
llongyfarch
to congratulate
The verb behind llongyfarchiadau.
About the words
Llongyfarchiadau is the plural of llongyfarchiad, "congratulation", which Geiriadur Prifysgol Cymru traces to llon, "glad", and cyfarchiad, "greeting". The verb is llongyfarch, to congratulate. Chwarae teg, a calque of the English "fair play", is used in Welsh to congratulate someone, as in Chwarae teg iddyn nhw!
Common questions
How do you say congratulations in Welsh?
Llongyfarchiadau! For a smaller win, Da iawn!, "well done".
Congratulations in the other Celtic languages
Further reading
Go beyond the phrases
blas. teaches Welsh with spaced repetition — vocabulary, mutations, grammar, reading, and conversation. Not just for Congratulations, but for life. Free to start.
Start learning WelshWelsh phrases for the year ahead
Welsh phrases for everyday occasions
Sources
Every phrase and fact on this page was checked against the sources below. Last checked 2026-10-20.
- Geiriadur Prifysgol Cymru: llongyfarchiad
- Wiktionary, via Kaikki.org
- Wiktionary, via Kaikki.org
- Wiktionary, via Kaikki.org
- Tatoeba: Tatoeba #7826948 by sharris123, CC BY 2.0 FR
- Wiktionary, via Kaikki.org
- Geiriadur Prifysgol Cymru: da
- Wiktionary, via Kaikki.org
Credit: Wiktionary contributors, CC BY-SA 4.0.