Vernon (French pronunciation: [vɛʁnɔ̃]; Norman: Vernoun) is a commune in the French department of Eure, administrative region of Normandy, northern France.

It lies on the banks of the river Seine, about midway between Paris and Rouen.

Mentioned in a Latin written document as Vernum, the /m/ at the end could be the last remains of the Celtic magus 'plain' or 'market', or it is a simple latinization, and the origin is just the Celtic word *uerno, alder tree (Breton gwern, Welsh gwern, Irish fern, modern French verne).

The village gave its name to a family who took part in the Norman Conquest of England, and then became a British first name.

The village is home to Établissement Saint-Adjutor, a notable private school.