Preah Mahaksatriyani Sisowath Monivong Kossamak Nearirath Serey Vathana (Khmer: ស៊ីសុវត្ថិមុនីវង្ស កុសុមៈនារីរ័ត្នសេរីវឌ្ឍនា; 9 April 1904 – 27 April 1975) was the Queen consort of Cambodia from 1955 to 1960 as the wife of King Norodom Suramarit. Sisowath Kossamak was born Princess of Cambodia as the daughter of King Sisowath Monivong of Cambodia.