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