William Dollente Dar (born April 10, 1953) is a Filipino horticulturist and public servant who served as the Secretary of Agriculture under the Duterte administration. He was appointed by President Rodrigo Duterte on August 5, 2019, to replace Emmanuel Piñol. Dar held the same position under President Joseph Estrada in an acting capacity from 1998 to 1999. He is also a former Director General of ICRISAT.