Chatham-Kent (2011 population 103,671) is a single-tier municipality in Southwestern Ontario, Canada. Mostly rural, its population centres are Chatham, Wallaceburg, Tilbury, Blenheim, Ridgetown, Wheatley and Dresden. The current Municipality of Chatham-Kent was created in 1998 by the merger of Kent County and its municipalities.

Chatham ( ) is one of the Medway towns located within the Medway unitary authority, in North Kent, in South East England.

Chatham—Kent was a provincial electoral district (or riding) in Ontario, Canada. It existed from the 1967 election until it was abolished into Lambton—Kent—Middlesex and Chatham-Kent—Essex in 1998.