Willem "Wim" Kok (Dutch pronunciation: [ˈʋɪm ˈkɔk] (listen); 29 September 1938 – 20 October 2018) was a Dutch politician who served as Prime Minister of the Netherlands from 22 August 1994 until 22 July 2002. He was a member of the Labour Party (PvdA).
Kok, a trade union leader by profession, worked for the Netherlands Association of Trade Unions from 1961 until 1976, when it merged to form the Federation Netherlands Labour Movement. Kok served as its first chairman from 1976 until 1986 when he left to enter the House of Representatives as a Labour politician. After the general election of 1994 Kok became Prime Minister of the Netherlands, taking office on 22 August 1994. In the following general election in 1998 Kok's party gained eight seats and the coalition retained its majority with a new cabinet being formed, continuing its policies. On 15 December 2001 Kok announced his retirement from national politics and stood down as Leader of the Labour Party that same day. He remained Prime Minister of the Netherlands until the First Balkenende cabinet was installed on 22 July 2002, semi-retiring from active politics at the age of 63.After his premiership, Kok became a lobbyist for the European Union and presided over several "high-level groups". He served various roles on supervisory boards in the worlds of business and industry as well as several international non-governmental organizations.
Kok was known for his abilities as a manager and negotiator. During his premiership, his cabinets were responsible for implementing several social reforms and further reducing the deficit. He held the distinction of leading the first purple coalitions as Prime Minister of the Netherlands. On 11 April 2003, he was granted the honorary title of Minister of State.
He is also known as Willem Kok and W. Kok.