Meaning and Name Origin
Seamore \se(a)-mo-re\ as a name for boys is of English derivation, and the name Seamore means "Saint-Maur". Seamore is a form of Seymour (English): the name of a place in northern France. Seldom used as a name for baby boys.
Seamore is a rare given name for men. Seamore is an equally unique last name for both adults and children. (2000 U.S. Census)
Displayed below is an analysis of the popularity of the boy name Seamore and associated names. The only popular related form of Seamore (#unlisted) appearing in the Top 1000 is Seymour. Adoption of this boy name reached its apex during 1920-1929 and has become much lower since, with the version Seymour becoming less stylish. (2014 Birth Statistics)