Kashk (Persian: كاشك, also Romanized as Kāshk) is a village in Tabas Rural District, in the Central District of Khoshab County, Razavi Khorasan Province, Iran. At the 2006 census, its population was 141, in 49 families. Further, it is the region in which Kashk Hendessi found its recipes centuries ago.

The language spoken in this village is Turkish, and the primary economic activities are livestock farming and dry farming. The villagers, while preserving their traditions and customs, are honest and united people who strive for progress through cooperation and hard work. Over the past 15 years, migration from this village was so significant that it brought the area to the brink of destruction. However, since 2010, with the support of the government and the tireless efforts of the Islamic Council members, the village has begun to progress, and today we witness the construction of more than 15 new homes.

The village consists of four areas: Yukhari, Chaharrah, Bual, and Kocheh Bagh. Additionally, six clans live in this village: Haj Mollahs, Haj Gholam Rezas, Kurds, Adinehs, Ghorbans, and Karbalaei Hassans.

The village has six qanats, all of which, except for the main Kashk qanat, have dried up. These qanats are named Behbud, Jaghbaei, Rizab-e Payin, Rizab-e Bala, Dino, and the main Kashk qanat.

It is worth noting that the main village qanat also dried up on June 10, 2014, leaving the village deprived of natural and surface water for agriculture.