Whitby—Oshawa is a federal electoral district in Ontario, Canada. It encompasses the towns of Whitby and Oshawa, located in the Durham Region. The area is known for its suburban communities, parks, and access to Lake Ontario, making it a desirable place for families and commuters. The district was created in 2003 and has undergone boundary changes since then. It is represented in the House of Commons of Canada, where elected officials advocate for local issues and interests. The region has a diverse population and a mix of residential, commercial, and industrial areas.