This page is subject to the extended confirmed restriction related to the Arab-Israeli conflict.Khirbet Sir (Arabic: خربة صير) is a Palestinian town in the Qalqilya Governorate in the eastern West Bank, located 8 kilometers east of Qalqilya.

Following its destruction and abandonment due to 16th-century local conflict, Khirbet Sir was likely resettled in the early 20th century by people from Hajjah.

In 1596, it appeared in the tax registers as being in the Nahiya of Bani Sa'b, part of Nablus Sanjak.

The villagers paid a fixed tax-rate of 33.3% on agricultural products, including wheat, barley, summer crops, olive trees, occasional revenues, goats and/or beehives, and a customary tax on subjects in Nablus region; a total of 7,000 akçe.

[6] In 1882 the PEF's Survey of Western Palestine (SWP) noted at Khurbet Sir: "two rock cut tombs, a large mound with terraces cut in the sides, a good well below; has every appearance of an ancient site.