Osarin is located 11.3 kilometers (7.0 mi) south of Nablus. It is bordered by Aqraba to the east, Beita to the north and west, and Qabalan to the south.[3]: 4
Shards from the early Ottoman era have been found here.[4] In 1596 the village appeared in Ottoman tax registers under the name of ‘’Usarin’’, and as being in the nahiya of Jabal Qubal in the liwa of Nablus. It had a population of 10 households and 4 bachelors, all Muslim. They paid a fixed tax-rate of 33,3 % on agricultural products, including wheat, barley, summer crops, olive trees, goats and beehives, in addition to occasional revenues and a press for olive oil or syrup; a total of 2,900 Akçe.[5]
In 1838, Ausarin was noted as a village in the District of El-Beitawy, east of Nablus.[6]
In the 1945 statistics, Usarin had a population of 200 Muslim,[10] with 2,185 dunams of land, according to an official land and population survey.[11] Of this, 347 dunams were plantations and irrigable land, 1,098 were used for cereals,[12] while 11 dunams were built-up land.[13]
During the early months of the First Intifada, on 23 March 1898, Adli Maher Sa'id, aged 14, was shot dead. An Israeli citizen, Ovadia Saluni from Masua, was detained as a suspect.[15]
After the 1995 accords, 83% of the village land is defined as Area B land, while the remaining 17% is Area C.[3]: 15
