The Free Wales Army, or the FWA for short, (Welsh: Byddin Rhyddid Cymru) was a Welsh paramilitary organisation that wanted independence for Wales from the United Kingdom.

It was formed in 1963 in Lampeter, a small town in Ceredigion, by Julian Cayo-Evans.

They first appeared in public at a protest in 1965 against the construction of the Llyn Celyn reservoir.

The group's members used to march through historic towns, such as Machynlleth, wearing home-made uniforms.