Andrzej Zbigniew Lepper was a Polish politician, Deputy Prime Minister, Minister of Agriculture, and the leader of Self-Defence of the Republic of Poland political party.

Self-Defence of the Republic of Poland is a nationalist, socialist, populist, and agrarian political party and trade union in Poland. The party promotes agrarian socialist and Catholic socialist economic policies combined with a left-wing populist, anti-globalization and anti-neoliberal rhetoric. The party describes itself as left-wing, although it stresses that it belongs to the "patriotic left" and follows Catholic social teaching. The party is sympathetic to Communist Poland, which led political scientists to label the party as neocommunist, post-communist, and far-left.