Allyn

Allyn is an English given name, a variant spelling of Alan, which derives from a Breton or Old Celtic root whose precise meaning is debated but is most often interpreted as little rock or harmony. The name was brought to England by Breton followers of William the Conqueror and became widely established throughout the medieval period. Allyn functions as both a masculine and occasionally feminine name in modern English-speaking usage, reflecting the broader flexibility seen in its cognates Allan and Allen.