Mariko Okubo (大久保 麻理子, Okubo Mariko, born September 7, 1984 in Sasebo Nagasaki) is a gravure idol, actress, and singer. In 2003, She was awarded GRAN PRIX in “Sea Story Audition 2003; Looking for Marine-chan”. In 2004, Mariko was awarded “Nittere Photogenic 2004″.
