Anne-Marie Lizin-Vanderspeeten (5 January 1949 – 17 October 2015) was a Belgian politician, who served as the President of the Senate of Belgium from 2004 to 2007.
Her career in politics began as a member of the city council of Ben-Ahin [fr] from 1970–76. She served on the city council of Huy in 1977 and was an alderman for Huy from 1980–82. In 1983, she was appointed mayor of Huy, holding this position for 26 years. In March 2009 she was forced to resign because of a series of scandals. She was succeeded by Micheline Toussaint.
In 1979, Lizin was elected as an elected Member of the European Parliament. In 1988, she was elected into the Belgian government, and served in office for eight years. During her first term, she was appointed as Secretary of State for European Affairs, yet she decided to leave this role in 1992 to initiate the Commission of Inquiry on human trafficking. In 2003, she became President of the Commission for External Relations and Defence of the Belgian Senate; In 2004, she was appointed President of the Senate of Belgium, before finally becoming Senator in July 2007. She was the first female President of the Belgian Senate (2004–07). On 27 January 2009 she was banned from the Socialist party after a corruption case. Outside of her career in Belgian politics, Lizin was the United Nations Independent Expert on Human Rights and Extreme Poverty from 1998 to 2004.
In March 2015 she was convicted in appeals court in Liège for electoral malpractice. She had appealed the conviction to the Supreme Court.