去氧腺苷二磷酸（Deoxyadenosine diphosphate，dADP）是一种与腺苷二磷酸相似的核苷酸，在五碳糖2号碳上的-OH基被氢原子取代。含有两个磷酸根、一个碱基腺嘌呤，以及五碳糖。

Deoxyadenosine diphosphate is a nucleoside diphosphate. It is related to the common nucleic acid ATP, or adenosine triphosphate, with the -OH (hydroxyl) group on the 2' carbon on the nucleotide's pentose removed (hence the deoxy- part of the name), and with one fewer phosphoryl group than ATP.