Polypodium cambricum, the southern polypody<ref name=BSBI07>Template:Cite web</ref> or Welsh polypody, is a species of fern in the family Polypodiaceae, native to southern and western Europe. It is a spreading, terrestrial, deciduous fern growing to Template:Convert tall, with pinnate fronds. The sori are yellow in winter.<ref name=RHSAZ>Template:Cite book</ref>
The specific epithet cambricum means "Welsh",<ref name=RHSLG>Template:Cite book</ref> from the Latinized form of Cymru, the Welsh name for Wales.
The cultivars ‘Cambricum’<ref>Template:Cite web</ref> and 'Grandiceps Fox' have gained the Royal Horticultural Society's Award of Garden Merit.<ref>Template:Cite web</ref><ref>Template:Cite web</ref>