St Budeaux is an area and ward in the north west of Plymouth in the English county of Devon.

Budoc of Dol was a 5th-century Breton monk and Bishop of Dol, who has been venerated since his death as a saint in both Brittany and Devon. Budoc is the patron saint of Plourin in Finistère where his relics are preserved. His feast day was originally celebrated on 8 December, the date still used in Devon, but in Brittany this has been transferred to 9 December.