Averill \a-veri-ll, av(e)-rill\ as a boy's name (also used as girl's name Averill), is of Old English origin, and the meaning of Averill is "boar battle". From "eofor hild" with connotations of a ferocious fighter. Industrialist and statesman Averell Harriman.

Averill has 12 variant forms: Ave, Averel, Averell, Averil, Averyl, Averyll, Avrel, Avrell, Avrill, Avryll, Haverell and Haverill.

Baby names that sound like Averill are Everild, Everildo, Everhild, Everald and Everly.