Old Mill is a neighbourhood of Toronto, Ontario, Canada on the banks of the Humber River. It located north and west of the intersection of Bloor Street and Jane Street.

The houses in this neighbourhood were built between 1920 and 1940. These distinctly Tudor style homes range in size from cosy two bedroom bungalows to four bedroom two-storey houses. All of the houses are detached and contain many decorative features like leaded glass windows, rich wood trim, and hardwood floors. Many of the houses back onto the ravine or overlook the Old Mill and the Humber River.

The most diverse street in this neighbourhood is Old Mill Road. This street contains a mix of houses, a co-op apartment building, a rental apartment building, and a few luxury condominiums. Many of these homes command a spectacular view of the Humber River Valley.

Old Mill Statitsics