Colinton is a suburb of Edinburgh, Scotland situated 3+1⁄2 miles southwest of the city centre. Up until the late 18th century it appears on maps as Collington. It is bordered by Dreghorn to the south and Craiglockhart to the north-east. To the north-west it extends to Lanark Road and to the south-west to the City Bypass. Bonaly is a subsection of the area on its southern side.

The Water of Leith is the main river flowing through central Edinburgh, Scotland, that starts in the Pentlands Hills and flows into the port of Leith and then into the sea via the Firth of Forth.