The Welsh Socialist Republican Movement ("Mudiad Sosialaidd Gweriniaethol Cymru") bụ ngagharị ndọrọ ndọrọ ọchịchị nke na-adịteghị aka nke amụrụ site na nkụda mmụọ na ọdịda Plaid Cymru na-emegide ntuli aka mbụ na Welsh Devolution
n'afọ 1979 iji depụta otu iwu akọwapụtara nke na-arụ ụka maka nnwere onwe. Ọ bụkwa mbọ iji mepụta ndị Welsh Socialist ọzọ na Plaid Cymru ma mepụta akwụkwọ nta na akwụkwọ akụkọ akpọrọ "Y Faner Goch" (Ọkọlọtọ Uhie).