Johanna Catharina Maria (Jolande) Sap (born May 22, 1963 in Venlo) is a Dutch GreenLeft (GroenLinks) politician and former educator and civil servant. She replaced Wijnand Duyvendak as an MP on September 3, 2008, after he left the Dutch House of Representatives. Since September 2, 2008 she was temporarily replacing Mariko Peters who was on parental leave but the next day Wijnand Duyvendak officially renounced, so she could succeed him.