Its source is Saint-Maur, a Norman French name meaning "An estate in northern France."
The name Seymour ranked 836th in popularity for males of all ages in a sample of the 1990 US Census.
Though this name appears on the 1990 U.S. Census lists, it is used by only a small percentage of the general population.
It is based on Saint-Maur, the name of a place in northern France.
A number of the Norman aristocrats who conquered England in 1066 were known by the place names of the estates they left behind in France. English attempts to represent the pronunciation of these baronial titles led to the formation of a number of surnames, including Seymour. Sinclair (derived from the place name Saint-Clair) is another name with a similar derivation.
The Norman French name Maur is derived from Mauricus, Latin ancestor to the English name Maurice, meaning ''Dark-complected.''