Welsh Language Society

Cymdeithas yr Iaith
FormationAugust 4, 1962 (1962-08-04)
FounderGareth Miles, Owain Owain, John Davies, Geraint Jones (Trefor)
TypeAdvocacy group
PurposeWelsh Language rights, Welsh Nationalism
HeadquartersAberystwyth, Wales
FieldsMinority language movement, Anti Globalization
Chairperson
Joseff Gnagbo
Websitecymdeithas.cymru

The Welsh Language Society (Welsh: Cymdeithas yr Iaith Gymraeg, also often abbreviated to Cymdeithas yr Iaith or just Cymdeithas in English) is a direct action pressure group in Wales campaigning for the right of Welsh people to use the Welsh language in every aspect of their lives. The chair of the Welsh Language Society since October 2023 is Joseff Gnagbo.