Chatham-Kent—Leamington (formerly Chatham-Kent—Essex and Chatham—Kent Essex) is a provincial electoral district in southwestern, Ontario, Canada.

It was created in 1999 from parts of Essex—Kent, Chatham-Kent and Essex South.

When the riding was created, it included all of Kent County south of the Thames River, the city of Chatham, the town of Leamington and the Township of Mersea Township.

As a result of the 2012 federal boundary redistricting, the name of the district was changed to Chatham-Kent—Leamington.

This riding has elected the following members of the Legislative Assembly of Ontario: ^ Change based on redistributed results