杰撒伊步枪（Jezail）是一种简单和廉价的枪口装填式火枪，这种武器常见于十八至十九世纪的英属印度、中亚和中东的部份地区。

杰撒伊步枪大部份都是土制武器，这种武器通常会以火绳枪或燧发枪的原理操作，而且枪身细长。

The jezail (Sometimes Jezzail from the Pashto language) was a simple, cost-efficient and often handmade muzzle-loading long arm commonly used in British India, Central Asia and parts of the Middle East in the past.