|Location||Between Sirion and Mindeb, south of Crissaegrim|
|Etymology||S. dim "sad" + -mbar "dwellingplace, home"|
Dimbar was an empty land in Beleriand.
Dimbar formed a wedge between the Sirion and the Forest of Brethil in the west and the Mindeb and Neldoreth in the east. The main road, which crossed the Sirion at Brithiach, cut Dimbar in half, as the land reached on to the vales og the Crissaegrim.