Delvin (Irish: Dealbhna or Dealbhna Mhór) is a town in County Westmeath, Ireland which is located on the N52 road at a junction with the N51 to Navan. The town is 20 km (12 mi) from Mullingar (along the N52) and is the setting of the book Valley of the Squinting Windows by Delvin native Brinsley MacNamara, described under the fictitious name of "Garradrimna".The word Delvin comes from Delbhna.