Betty Disero is a Canadian politician, the former Lord Mayor of Niagara-on-the-Lake, Ontario. She is a former city councillor in Toronto, Ontario, Canada. She was elected to the Toronto City Council in 1985, and served until her resignation in 2003. She moved to Niagara-on-the-Lake in 2009 and was first elected to town council in 2014, becoming Lord Mayor in 2018.