What does Kerrigan mean?
Kerrigan /ker-ri-g-an/ [3 sylls.] as a name for boys. The name Kerrigan means "black-haired". Kerrigan is a version of Kerry (Irish, Gaelic) with the suffix -igan.
How popular is Kerrigan?
Kerrigan is a rare first name for men but a very popular surname for both adults and children (#5831 out of 150436, Top 4%). (2000 U.S. Census)
Shown below is a comparison of the usage of the boy name Kerrigan and related names. Kerry is the only prominent variation form of Kerrigan (not ranked) listed in the Top 1000. Forms like Kerrey are uncommon. Adoption of this boy name reached its most widespread during 1960-1969 (usage of 0.823%) and has become significantly less since, with Kerry becoming less trendy. (2014 Birth Statistics)