Qalqīlyah (Arabic قلقيلية; Standard Hebrew קלקיליה Qalqilya) is an Arab city in the West Bank. Most of the residents are farmers, and constant contact with Israeli farmers has made Qalqīlyah a bilingual town.

Because of the ongoing Second Intifada, the Israeli Defense Forces started building the controversial Israeli West Bank barrier. Since 2003, this barrier has been built to completely encircle Qalqīlyah, separating the city from lands on both sides of the fence.