Meidner is a surname. Notable people with the surname include:
Hans Meidner (1914–2001), South African plant physiologist Ludwig Meidner (1884–1966), German expressionist painter and printmaker Else Meidner, née Meyer (1901–1987), German painter, wife of Ludwig Rudolf Alfred Meidner (1914–2005), German-Swedish economist Rehn–Meidner Model, an economic model developed in 1951 Rehn-Meidner Macroeconomics to Neo-liberalism