Hello how may I help you? help me with celebrity facts Sure, what would you like to know? how tall is Conan O'Brien? Conan O'Brien is 6 feet 6 inches tall. is he currently married? Yes, Conan O'Brien is currently married to Liza Powel O'Brien. do they have any kids? Yes, they currently have 2 children. ok thanks for looking it up You are welcome.