Mimico is a neighbourhood and a former municipality in Toronto, Ontario, Canada. It is located in the south-west area of Toronto, along Lake Ontario. It is the south-east corner of the former Township (and later, City) of Etobicoke, and was an independent municipality from 1911 to 1967.

Mimico is the oldest of the former Lakeshore Municipalities. The Town of Mimico was sub-divided from the former Township of Etobicoke in 1911. The land area of Mimico was mainly from three estates (former farms): Stock Estate (North of Portland), Hendry Estate (between Royal York and Queens Ave), Van Every Estate (between Royal York Rd and Dwight Ave). Mimico was an independent municipality until 1967, when it was amalgamated into the new Borough of Etobicoke (later, City of, in 1984), which was itself amalgamated in 1998 into the current city of Toronto.

Today, Mimico is primarily a residential area with two commercial strips; one along Royal York Road and the other along Lake Shore Boulevard West, parallel to the shoreline (from Louisa Avenue to Allen Avenue). There is also a former commercial strip along Mimico Avenue connecting Royal York Road and Lake Shore Boulevard West. Some areas of industrial use exist along the railway corridor.

In early 2012, Toronto Life magazine ranked Mimico first on their "Where to Buy Now" list of Toronto neighbourhoods.

Historically, Mimico had few buildings and few of these survive. Architecturally, homes in Mimico range from grand lakeside estates to bungalows built in the 1920s to 1940s, and low rise apartment buildings built in the 1950s and 1960s. East of historic Mimico between Mimico Creek on the west and the Humber River to the east, there is a large area of condominium high-rise tower development along the lake shore. Lake Shore Blvd. West is also home to many Eastern European delicatessen, independent stores and bakeries, giving the area an Eastern European atmosphere.

Businesses in Mimico's commercial strips along Royal York (north of the railway) and Lake Shore Boulevard West (South of the railway) have organised themselves into two Business Improvement Areas: 'Mimico Village' (along Royal York Rd. in northern Mimico) and 'Mimico by the Lake' (the heart of the former 'Mimico Beach' postal area along the lakeshore in eastern Mimico)

Recreation options in Mimico include the Mimico Tennis Club, the Mimico Cruising Club and the Etobicoke Yacht Club. Near the foot of Park Lawn Road is Humber Bay Park, land created by infill of the lake, creating an artificial peninsula and enclosing Mimico Harbour at Mimico Creek. It has a few picnic areas, boat slips, walking trails and grasslands for recreational use.

In 1890, a waterfront walkway was planned consisting of The Parade at the bottom of Superior Avenue and Marine Parade starting at the bottom of Royal York Road. This plan had disappeared by 1911 except for a small part of Marine Parade (Sussex Drive). The City of Toronto, along with the Toronto and Region Conservation Authority, is building a publicly accessible waterfront. The first phase of the Mimico Linear Park, opened in July 2008, connects three small parks using cobblestone beaches, boardwalks and sand dunes, and will eventually connect with Humber Bay Park to the east. As of 2008, construction of the second phase was delayed due to a minority group of property owners who refused to sell their lakefront access. This project has been completed through the Humber Bay neighbourhood with a roadway named Marine Parade Drive after the original one in Mimico.

Mimico has had a long reputation for supporting both of Canada's national sports. In hockey, Mimico has developed a number of NHL players; there was even a Wayne and Shuster sketch where Johnny and Frank played for the mythical Mimico Mice against the then-Stanley Cup champion Toronto Maple Leafs. Mimico's lacrosse clubs have been in existence since the 1800s and have won a number of National Championships.