Hewett \he-wett, hewe-tt\ as a boy's name is of Old French origin. A surname brought to England after the Norman Conquest of 1066. The Hewett family lived in Huet near Evreux in Normandy, France. Also possibly a diminutive of Hugh (German) "small intelligent one".

Hewett has 5 variant forms: Hewet, Hewie, Hewitt, Hewlett and Hewlitt.

Baby names that sound like Hewett are Heath, Hyatt, Hiatt and Hayatt.