Thomas Edwards (Caerfallwch, 1779–1858), was a Welsh writer and lexicographer born in Northop, Flintshire, Wales.
At the age of 14, Edwards was apprenticed to a saddler named Birch, in whose family he cultivated his taste for Welsh-language literature.
In 1838, Edwards was appointed with five others to improve Welsh orthography, in connection with the Abergavenny Eisteddfod.
Edwards's most notable work was his English and Welsh Dictionary, published by Evans of Holywell, Flintshire in 1850.
He was interred in a family grave in Highgate Cemetery, near the top end on the western side.