Karen Marie Overington (16 November 1951 – 11 August 2011) was an Australian politician. She was a Labor Party member of the Victorian Legislative Assembly from 1999 to 2010, representing the electorate of Ballarat West. Overington was elected to parliament on her second attempt as part of Labor's victory in the 1999 elections, having lost one prior attempt in 1993. She was re-elected with little difficulty in 2002 and 2006, winning 55.5 per cent of the vote at the 2006 election.