There are a number of lakes named Lake Saint Clair or Lake St Clair.

• Lake Saint Clair, part of the Great Lakes system and lying between Ontario and Michigan
• Lake Saint Clair in Arizona, a reservoir built in 1974
• Lake Saint Clair in Virginia
• Lake St Clair in Tasmania, Australia

There is also a Saint Clair Lake in Washington State.

Saint Clairi järv (täpsustus) | セントクレア湖