Leetsdale, Pennsylvania
（重定向自Leetsdale）
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![Map of the Pittsburgh Tri-State with green counties in the metropolitan area and yellow counties in the combined area.](/Images/godic/202501/23/2013_Pittsburgh_Metro_Area_SMALL2921.PNG")
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Leetsdale is a borough in Allegheny County, Pennsylvania, along the Ohio River. It is part of the Pittsburgh Metro Area. The population was 1,218 at the 2010 census.
Leetsdale at one time had a formidable industrial manufacturing base, with a Bethlehem Steel mill that closed in the late 1970s.