This is a list of flags that are used exclusively in Wales. Other flags used in Wales, as well as the rest of the United Kingdom can be found at list of British flags.

National flags

Royal standards of the United Kingdom

Government flags

Religious

Dioceses of the Church in Wales

Historical

Welsh flags

Welsh royal standards

Battle flags

Religious flags

Other flags

Regions, counties and cities

Traditional counties

Of the 13 historic counties, seven have flags registered with the Flag Institute, with Brecknockshire, Cardiganshire (now Ceredigion), Carmarthenshire, Denbighshire, Montgomeryshire and Radnorshire outstanding.

Cities, towns and villages

University flags

House flags

Nationalist flags