Namesakes
Fictional Characters from Television:
1 character
Seymour Skinner 1989 The Simpsons 
Notable Actors and Entertainers:
1 actor
Philip Seymour Hoffman 1967-2014
Olympic Medalists:
1 bronze
(bronze) Feg Murray (a.k.a. Seymour) 1920 110 m hurdles
Oscar Award Winners:
1 actor
(actor) Philip Seymour Hoffman 2006 Capote
Other Leaders:
1 prime minister
Prime Minister Owen Arthur (a.k.a. Seymour) 1994-2008 Barbados