List of Welsh-language poets (6th century to c. 1600)

Much of Welsh language poetry has, until quite recently, been composed in various forms of strict metre (canu caeth), latterly with the encouragement of the eisteddfod movement. The following list is as inclusive as possible for the years prior to 1600. It includes as many minor poets as possible to illustrate the range and content of Welsh poetry throughout the ages. However much early poetry has been lost, and much medieval verse is either anonymous or, usually in the case of mythological poems and prophetic verse, attributed to the 6th-century poet Taliesin or the mythical figure of Myrddin. Early religious and gnomic verse is also usually anonymous. Where possible examples of each poet's surviving work is presented at Welsh Poetry at Wikisource

Each period of the poets listed below is accompanied by a graphical timeline to illustrate the main events and individuals that influenced the poets and their work. These timelines also depict the development of the Welsh language. Further details of its development may be found at Welsh language.