AGM-158 JASSM（Joint Air-to-Surface Standoff Missile，联合空对面战区外导弹）是美国发展的一种低可探测性战区外空对面巡航导弹，是一种大型的半隐身空对面导弹，重量超过一吨。它从1995年开始发展，但是一些测试阶段中的问题拖延了时间，直到2009年才服役。除了美国空军外，包括澳大利亚和芬兰也采用了此型飞弹。除了标准版本外，延长射程后的AGM-158B JASSM-ER型（ER是「延长射程」Extended Range之意）已于2014年服役。

The AGM-158 JASSM (Joint Air-to-Surface Standoff Missile) is a low observable standoff air-launched cruise missile developed in the United States. It is a large, semi-stealthy long-range weapon of the 2,000 pounds (910 kg) class. The missile's development began in 1995, but a number of problems during testing delayed its introduction into service until 2009. As of 2014, the JASSM has entered foreign service in Australia and Finland, and been ordered by Poland. An extended range version of the missile, the AGM-158B JASSM-ER (Joint Air-to-Surface Standoff Missile-Extended Range), entered service in 2014.