Gilsenan
Gilsenan is a surname which may originate with followers of Senán mac Geirrcinn. Notable people with the surname include:
- Matthew Gilsenan, Irish singer
- Alan Gilsenan, Irish writer, filmmaker, and theater director
- Conor Gilsenan, Irish rugby union player
- Matt Gilsenan, Irish Gaelic footballer
- Zak Gilsenan, Irish soccer player
- Michael Gilsenan, Professor Emeritus of Middle Eastern and Islamic Studies and Anthropology