Olivia Chow (Chinese: 鄒至蕙; born March 24, 1957) is a Canadian retired politician who was a federal New Democratic Party (NDP) member of Parliament (MP) representing Trinity—Spadina from 2006 to 2014. Chow ran in the 2014 Toronto mayoral election, placing third behind winner John Tory and runner-up Doug Ford, and served on the Metro Toronto Council from 1991 to the 1998 amalgamation and subsequently on Toronto City Council until 2005, when she ran for MP. Chow is the widow of former Official Opposition and NDP leader Jack Layton. They were married from 1988 until his death from cancer in 2011.