Why is it anger, O Myfanwy,
That fills your eyes so dark and clear?
Your gentle cheeks, O sweet Myfanwy,
Why blush they not when I draw near?
Where is the smile that once most tender
Kindled my love so fond, so true?
Where is the sound of your sweet words,
That drew my heart to follow you?
Pa beth a wneuthum, O Myfanwy
I haeddu gwg dy ddwyrudd hardd?
Ai chwarae oeddit, O Myfanwy
 thanau euraidd serch dy fardd?
Wyt eiddo im drwy gywir amod
Ai gormod cadw'th air i mi?
Ni cheisiaf fyth mo'th law, Myfanwy,
Heb gael dy galon gyda hi.
What have I done, O my Myfanwy,
To earn your frown? What is my blame?
Was it just play, my sweet Myfanwy,
To set your poet's love aflame?
You truly once to me were promised,
Is it too much to keep your part?
I wish no more your hand, Myfanwy,
If I no longer have your heart.
Myfanwy boed yr holl o'th fywyd
Dan heulwen ddisglair canol dydd.
A boed i rosyn gwridog iechyd
I ddawnsio ganmlwydd ar dy rudd.
Anghofia'r oll o'th addewidion
A wneist i rywun, 'ngeneth ddel,
A dyro'th law, Myfanwy dirion
I ddim ond dweud y gair "Ffarwél".
Myfanwy, may you spend your lifetime
Beneath the midday sunshine's glow,
And on your cheeks O may the roses
Dance for a hundred years or so.
Forget now all the words of promise
You made to one who loved you well,
Give me your hand, my sweet Myfanwy,
But one last time, to say "farewell".
In popular cultureEdit
The song features in John Ford's How Green Was My Valley, and also in the last scene of the Swansea based movie, Twintown, where it is sung by members of many local choirs, including the Pontarddulais Male Voice Choir.