Attje Harma Kuiken (Dutch pronunciation: [ˈɑtɕə ˈɦɑrmaː ˈkœykə(n)]; born 27 October 1977) is a Dutch politician and former civil servant serving as the leader of the Labour Party in the House of Representatives since 22 April 2022.

[1] She founded a local chapter of the Young Socialists, the youth organisation of the Labour Party, in Breda.

[1] After fellow Labour member Martijn van Dam was appointed State Secretary for Economic Affairs in November 2015, Kuiken was elected vice parliamentary group leader.

[4] After the resignation of Diederik Samsom as parliamentary leader on 12 December 2016, Kuiken succeeded him.

The perceived success of the joint campaign laid the groundwork for Labour and GroenLinks run a formal single list in the snap general elections later that year.