Twechar is a small former mining village historically in Dunbartonshire and administered by the council area of East Dunbartonshire, Scotland close to the boundary with North Lanarkshire. It lies between the larger towns of Cumbernauld, Kilsyth and Kirkintilloch. The Forth and Clyde Canal runs close to the village to the north, and closely follows the line of the Antonine Wall. There are visible remains of the wall on Bar Hill and the Roman Fort is a local tourist attraction.

East Dunbartonshire is one of the 32 council areas of Scotland. It borders Glasgow City Council Area to the south, North Lanarkshire to the east, Stirling to the north, and West Dunbartonshire to the west. East Dunbartonshire contains many of the affluent areas north of Glasgow, including Bearsden, Milngavie, Milton of Campsie, Balmore, and Torrance, as well as many of Glasgow's commuter towns and villages. The council area covers parts of the historic counties of Dunbartonshire, Lanarkshire, and Stirlingshire.