People Denis O'Brien Denis O'Brien Denis O'Brien from . About Family Child He has one child, Eliza . Other facts about Denis O'Brien Family name O'Brien. Show people with the surname O'Brien Given name Denis Sex or gender Male Denis O'Brien's Child Eliza O'Brien Comments There are no comments yet. Enter your name here: Enter your email here: Enter your message here: Your message is required. Markdown cheatsheet. Submit