Kourtney Mary [Edit] By Sticky Facts Editorial StaffKourtney Mary biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:Kourtney Mary date of birth:April 18, 1979How old is Kourtney Mary?45 Tags: birth day 18birth month aprilbirth year 1979 Suggested Posts Mila Kunis Facts Kit Harington Facts Eminem Facts Madonna Facts Shakira Facts Justin Bieber Facts Julia Roberts Facts George Harrison Facts