Lake Superior is one of several lakes within the historic Cornbury Park estate near Charlbury, Oxfordshire.

It was formed during the 19th century when the three highest ponds on the estate — those situated nearest the old Wychwood Forest — were combined into a single body of water. At that time a boathouse was also added to the lake.

Further alterations were made between 1896 and 1898, when the lakes were dammed to maintain a constant water flow, and a turbine and water wheel were installed to supply Cornbury House with water.

The lake sits within a parkland setting noted historically for its extensive views and grand old avenues.