Messei (French pronunciation: [mɛsɛ] ⓘ) is a commune in the Orne department in north-western France.

[3] It is 1,320 hectares (5.1 sq mi) in size.

The highest point in the commune is 215 metres (705 ft).

There are three watercourses that traverse through the commune, the river Varenne, La Vere and a stream called the Blanche-Lande.

This Orne geographical article is a stub.