Prince Sisowath Monireth (Khmer: ?????????? ??????????; November 25, 1909 – September 1975) was Prime Minister of Cambodia, during the French Protectorate Period, from October 17, 1945 to December 15, 1946.
One of the most prominent members of the Sisowath line of the royal family at the time, he had earlier been passed over for the throne by the French authorities in favor of Norodom Sihanouk, whom they considered to be more pliable.
The prince, however, remained heir to the throne under Sihanouk's reign.