Llangar Church, or All Saints Old Parish Church, Llangar, was formerly the parish church of Llangar with Cynwyd, in the Dee Valley, Denbighshire, North Wales. It is now under the guardianship of Cadw, is a Scheduled Monument, and a grade I Listed Building. It is conserved and open to the public as an example of a rural church with medieval wall paintings and largely intact 18th century interior fittings.