Cymdeithas Edward Llwyd

Cymdeithas Edward Llwyd (Welsh for 'Edward Llwyd Society') is a Welsh natural history organisation whose name commemorates the great Welsh natural historian, geographer and linguist Edward Llwyd (1660–1709).

Plaque at Plas Tan y Bwlch, Gwynedd, commemorating the 25th anniversary of Cymdeithas Edward Llwyd

The Cymdeithas Edward Llwyd organises regular country walks throughout Wales in sites of interest of the Welsh environment, including SSSIs and post-industrial landscapes. These are Welsh-language walking groups, although learners are just as welcome.^[1]

They also organise a variety of nature and environmental activities, including lectures, publications and conservation work. They have worked on collecting and documenting the names of natural species.^[2]

in 2010 society held a conference on Welsh toponymy, at which it was agreed to form the Welsh Place-Name Society.^[3][4]