Seamus \se(a)-mus\ as a boy's name is pronounced SHAY-mus. It is of Irish origin. Variant of James (Hebrew) "he who supplants". "Shamus" is sometimes used as an American slang for a private detective. Poet Seamus Heaney.
Seamus has 3 variant forms: Seumas, Seumus and Shamus.
For more information, see also the related name Jacob.
Baby names that sound like Seamus are Semmes, Syms, Simms and Symms.
View a list of the 3 names that reference Seamus.
Seamus is not a popular first name for men and an equally uncommon surname or last name for both men and women. (1990 U.S. Census)