Namesakes
Fictional Characters from Song Titles:
1 character
(character) Seamus 1971 Seamus 
Harry Potter Characters:
1 character
Seamus Finnigan
Nobel Prize Winners:
1 literature
(literature) Seamus Heaney 1995
Notable Actors and Entertainers:
1 actor
Denis O'Hare (a.k.a. Seamus) 1962-
Notable Athletes:
2 soccer
(soccer) Shay Given 1976-
(soccer) Séamus Coleman 1988-
Notable Politicians and Statespeople:
1 politician
Seamus Mallon 1936-2020
Notable Writers:
1 author, 1 poet
Seamus Heaney 1939-2013
Seamus Deane 1940-2021