|Motto: Pax Et Prosperitas (Peace and Prosperity)|
|Incorporated:||-31 May 1828 (as village)|
-1 January 1899 (as town)
-1 July 2003 (as city)
|Time zone:||North American Eastern Standard Time|
|Postal code span:||K6B and K6C.|
|Local area code:||+1-613|
|45º 1627.6' N|
-75º 1654.51' W
|Mean Elevation:||65 m.|
|Governing body:||Mableville Municipal Council|
|Members of Parliament:||Amelia Hartford|
|Members of Provincial Parliament:||John McHart|
Mableville is a city in the Canadian province of Ontario. The population of the city is 24,012. Mableville is the social, economic and business centre of Quigley County. It is a Level 2 Eastern Ontario Anchor City (on par with Brockville, Cornwall and Pembroke).
- Main article: Mableville West
Mableville West is the largest ward, with a population of about 12,000 (approximately half of the city's population). It is also the most urban and densely populated ward.
Downtown Mableville is a historic area with an appearance that hardly changed over the past 110 years due to the Mableville Historic Act. The ward has a population of about 3,000.
Mableville East is in the eastern half of the city that has an ultra-modern appearance. This region has about 8,000 people. Mableville East used to be the largest ward. However, Mableville West surpassed Mableville East in population in 1996.
Lake Mableville is a much more rural ward situated to the south of the other wards. It encompasses Lake Mableville, a giant lake of approximately 53 square kilometres. Out of Lake Mableville ward's 1,150 residents, approximately 1,000 of them live in the officially-designated Lake Mableville Village, a resort community. The remaining 150 people of Lake Mableville ward live in small "clusters" of homes around the southern rim of the lake.
Mableville currently has a sister city relationship with Pavlovsk, Russia (near St. Petersburg).