Lanark—Frontenac—Lennox and Addington (provincial electoral district)

Lanark—Frontenac—Lennox and Addington
Ontario electoral district
	Lanark—Frontenac—Lennox and Addington shown within the Eastern Ontario region
Provincial electoral district
Legislature	Legislative Assembly of Ontario
MPP	Randy Hillier; Progressive Conservative
;
District created	2006
First contested	2007
Demographics
Population (2006)	117,389
Electors (2006)	88,185
Area (km²)	9,639
Pop. density (per km²)	12.2
Census division(s)	Frontenac, Lanark, Lennox and Addington
Census subdivision(s)	Addington Highlands, Beckwith, Carleton Place, Central Frontenac, Drummond/North Elmsley, Greater Napanee, Lanark Highlands, Loyalist, Montague, North Frontenac, Perth, Smiths Falls, South Frontenac, Stone Mills, Tay Valley

For the federal electoral district, see Lanark—Frontenac—Lennox and Addington (federal electoral district)

Lanark—Frontenac—Lennox and Addington is a provincial electoral district in Ontario, Canada, that has been represented in the Legislative Assembly of Ontario since 2007. The new riding was created in 2003 from parts of Hastings—Frontenac—Lennox and Addington and Lanark—Carleton ridings. In the 2007 provincial election, the MPPs representing the two predecessor ridings of Hastings—Frontenac—Lennox and Addington and Lanark—Carleton chose to run, respectively, in the newly-created ridings of Prince Edward—Hastings to the west of the new riding, and Carleton—Mississippi Mills to its east. As a result, the riding had no incumbent, and was contested by candidates who had never previously held office. Ontario Progressive Conservative Party (PC) candidate Randy Hillier won by a narrow margin of less than one thousand votes, one of only three victories for a PC candidate in a non-incumbent-held riding.