Seymour \se(y)-mour\ as a boy's name is pronounced SEE-mor. It is of English origin, and the meaning of Seymour is "Saint-Maur". The name of a place in northern France. Many Norman aristocrats who conquered England in 1066 were known by the place names of the estates they left behind in France. English pronunciation of these baronial titles led to the creation of surnames such as Seymour and Sinclair. The Norman French name Maur is derived from Mauricus, Latin ancestor to the English name Maurice, meaning "dark-skinned". Mostly 19th century use.

Seymour has 4 variant forms: Seamore, Seamor, Seamour and Seymore.

A baby name that sounds like Seymour is Xiomar.