联合直接攻击导引炸弹（英文：Joint Direct Attack Munition，简称JDAM），是由波音公司为美国海军和空军联合开发的一种空投炸弹配件，装在由飞机放的传统炸弹上，将本来无控的传统航空炸弹转变为可控，并能在恶劣气象条件下使用的精确制导武器。弹药的导引功能是由炸弹尾翼控制附件以及全球定位系统或惯性导航系统提供，与美军的B-2幽灵战略轰炸机等多种军用飞机的火控系统兼容，JDAM的单价约两万美元。装配了JDAM的炸弹重量一般在500磅（227公斤）和2000磅（907公斤）之间。

The Joint Direct Attack Munition (JDAM) is a guidance kit that converts unguided bombs, or "dumb bombs" into all-weather "smart" munitions. JDAM-equipped bombs are guided by an integrated inertial guidance system coupled to a Global Positioning System (GPS) receiver, giving them a published range of up to 15 nautical miles (28 km). JDAM-equipped bombs range from 500 pounds (227 kg) to 2,000 pounds (907 kg). When installed on a bomb, the JDAM kit is given a GBU (Guided Bomb Unit) nomenclature, superseding the Mark 80 or BLU (Bomb, Live Unit) nomenclature of the bomb to which it is attached.