Myrddin ap Dafydd (born 25 July 1956, in Llanrwst) is a Welsh editor and prifardd. He was educated in the town schools and Coleg Prifysgol Aberystwyth. He founded the Gwasg Carreg Gwalch publishing company.
Music and poetry Llyfr Caneuon Tecwyn y Tractor (Rhys Parry, Myrddin ap Dafydd, Trefn. Guto Pryderi Puw), June 1998, (Gwasg Carreg Gwalch)
Pen Draw'r Tir , November 1998, (Gwasg Carreg Gwalch)
Denu Plant at Farddoniaeth - Pedwar Pŵdl Pinc a'r Tei yn yr Inc , February 1999, (Gwasg Carreg Gwalch)
Denu Plant at Farddoniaeth - Cerddi ac Ymarferion: Cyfrol 1 - Armadilo ar ... , September 2000, (Gwasg Carreg Gwalch)
Jam Coch Mewn Pwdin Reis , November 2000, (Hughes a'i Fab)
Syched am Sycharth - Cerddi a Chwedlau Taith Glyndŵr , July 2001, (Gwasg Carreg Gwalch)
Llyfrau Lloerig: Y Llew Go Lew , January 2002, (Gwasg Carreg Gwalch)
Clawdd Cam , October 2003, (Gwasg Carreg Gwalch)
Clywed Cynghanedd: Cwrs Cerdd Dafod , 1994, Reprinting July 2003, (Gwasg Carreg Gwalch)
Cerddi Cyntaf , September 2006, (Gwasg Carreg Gwalch)
Cyfres y Llwyfan: Ar y Gêm , January 1982, (Gwasg Carreg Gwalch)
Cyfres y Llwyfan: Ail Godi'r To , January 1986, (Gwasg Carreg Gwalch)
Gweld Cymru - Hwyl wrth Ddod i Adnabod Gwlad , May 1998, (Gwasg Carreg Gwalch)
Golau ar y Goeden - Arferion, Straeon a Cherddi Nadolig , Medi 2000, (Gwasg Carreg Gwalch)
Syniad Da Iawn! (Sioned Wyn Huws, Myrddin ap Dafydd, Haf Llywelyn, Martin Morgan, Eleri Llewelyn Morris), Tachwedd 2000, (Gwasg Carreg Gwalch)
Cyfres Mewnwr a Maswr: 1. Brwydr y Brodyr , June 2004, (Gwasg Carreg Gwalch)
Cyfres Straeon Plant Cymru 1: Straeon y Tylwyth Teg , May 2005, (Gwasg Carreg Gwalch)
Cyfres Straeon Plant Cymru 2: Ogof y Brenin Arthur , May 2005, (Gwasg Carreg Gwalch)
Cyfres Straeon Plant Cymru 3: Gelert, Y Ci Ffyddlon , May 2005, (Gwasg Carreg Gwalch)
Cyfres Straeon Plant Cymru 4: Barti Ddu Môr-leidr o Gymru , May 2005, (Gwasg Carreg Gwalch)
Odl-Dodl Dolig , Medi 2006, (Gwasg Carreg Gwalch)
Cyfres Straeon Plant Cymru 5: Meini Mawr Cymru , April 2007, (Gwasg Carreg Gwalch)
Cyfres Straeon Plant Cymru 6: Draig Goch Cymru , April 2007, (Gwasg Carreg Gwalch)
Tales from Wales 1: Fairy Tales from Wales , May 2005, (Gwasg Carreg Gwalch)
Tales from Wales 2: King Arthur's Cave , May 2005, (Gwasg Carreg Gwalch)
Tales from Wales 3: The Faithful Dog Gelert , May 2005, (Gwasg Carreg Gwalch)
Tales from Wales 4: Black Bart , May 2005, (Gwasg Carreg Gwalch)
Tales from Wales 5: Stories of the Stones , April 2007, (Gwasg Carreg Gwalch)
Tales from Wales 6: The Red Dragon of Wales , April 2007, (Gwasg Carreg Gwalch)
Llyfrau Llafar Gwlad: 37. Enwau Cymraeg ar Dai , July 1997, (Gwasg Carreg Gwalch)
Circular Walks e.g. "Carmarthenshire Coast and Gower Circular Walks"
The "Welcome to..." series, e.g. "Welcome to Bermo (Barmouth)"
Caneuon Tecwyn y Tractor , July 2004, (Sain Records)
Awards and honours Chair bard of Urdd National Eisteddfod 1974
Y Gadair Cwm Rhymni Welsh National Eisteddfod 1990
Bardd Plant Cymru 2000
Tir na n-Og Award 2001 with the book Jam Coch Mewn Pwdin Reis , (Hughes a'i Fab)
Y Gadair Tyddewi Welsh National Eisteddfod 2002