Johanna Maria Theresia Knol (born 7 February 1926) is a former Dutch politician. She was born in Enschede, Overijssel. She was a schoolteacher by profession. For the Catholic People's Party (KVP), she served as a member of the House of Representatives from 1959 to 1963. In 1968, Knol left the KVP to join the Political Party of Radicals (PPR). She was later active in the Women's Party in the late 1980s.