The Toronto Courthouse is a major courthouse in Toronto, Ontario, Canada, located behind Osgoode Hall at 361 University Avenue, north of Queen Street West. It is a branch of the Ontario Superior Court of Justice and is mostly used for criminal trials, but also family law matters. Courtrooms on the main floor are used primarily for family law matters, while courtrooms located above the ground floor are primarily used for criminal matters, but, in rare cases, may be used for civil proceedings, especially where a litigant is in custody and must attend in person, or where someone may be subject to imprisonment in light of a finding of contempt, due to the civil court facilities located in other nearby buildings, such as the Canada Life Building, not having facilities to house inmates.

The site of the Toronto Courthouse was previously occupied by Thomas Fuller's Romanesque Revival style Toronto Armories, demolished in 1963. The new courthouse was built in 1967 as the Metropolitan Toronto Courthouse. It served as a courthouse for York County, which formerly included the City of Metropolitan Toronto. After 1980, it served solely as a courthouse for Toronto.

The building was designed by architect Ronald A. Dick, who described its form as one of "dignity and convenience." The imposing structure features fin walls (walls strengthened by equally-spaced piers), a 12-sided form and an open passageway of the adjoining South Wing (completed in 1985).

There is a tunnel connecting the building to nearby Osgoode Hall, although its use is restricted to staff. Two additional stories were added in 1987. It was one of the last large complexes in Ontario created with local Queenston limestone.

43°39′10″N 79°23′11″W / 43.65278°N 79.38639°W / 43.65278; -79.38639