Grenville—Carleton (federal electoral district)

Grenville–Carleton was a federal electoral district in Ontario, represented in the House of Commons of Canada from 1968 to 1979. It was created in 1966 from portions of the former Carleton and Grenville—Dundas ridings.

It consisted of:

• The part of the City of Ottawa lying south of Baseline Road and west of Fisher Avenue;
• the Townships of Goulbourn, Marlborough, Nepean, North Gower and Osgoode, as well as Long Island (in the Township of Gloucester) in the County of Carleton;
• the County of Grenville, including the Village of Merrickville, and
• the Townships of Matilda and Mountain in the County of Dundas.

The electoral district was abolished in 1976 when it was redistributed between Leeds—Grenville, Nepean—Carleton, Ottawa Centre, Ottawa West—Nepean and Stormont—Dundas ridings.