Kosh (Armenian: Կոշ) is a village in the Ashtarak Municipality of the Aragatsotn Province of Armenia, 18 km south-west of the district centre Ashtarak. The town is attested as Kvash in early Christian times. In the town are ruins of a 13th-century church - Saint Grigor - and a castle which has yielded Hellenistic pottery remains. There are numerous remains from early Iron Age residential ruins and buildings of large basalt stone blocks.

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  Map of Kosh and the surrounding region.
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  St. Gevorg church of the 19th century
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  Kosh Berd (13th century) atop a hill beyond the village cemetery, with the church of St. Grigor (13th century, foreground).
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  Kosh Berd on a hilltop above the cemetery, 13th century
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  Church of St. Stepanos of the 7th century in the gorge near Kosh.
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  Church of St. Stepanos, 7th century
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  Ruins of the hilltop chapel near the church of St. Stepanos.
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  Khachkar monument of 1175 at the hilltop cemetery.

• Kosh, Armenia at GEOnet Names Server
• World Gazetteer: Armenia – World-Gazetteer.com
• Report of the results of the 2001 Armenian Census
• Kiesling, Rediscovering Armenia, p. 17, available online at the US embassy to Armenia's website