English words from Old Breton
- alanA member of a group of Sarmatian tribes, nomadic pastoralists of the 1st millennium AD who spoke an Eastern Iranian language derived from Scytho-Sarmatian and which in turn evolved into modern Ossetian.
- HarveyA surname transferred from the given name.
- JewellA surname originating as a patronymic.
- JekyllA surname.
- JudicaelA surname.
- Morgan le FayThe half sister of King Arthur, known for being a powerful enchantress.
- WymarkA surname.