去氧胞苷三磷酸（Deoxycytidine triphosphate，dCTP）是核苷三磷酸的一种，也是可用来合成DNA的原料之一。含有五碳糖、磷酸根，以及胞嘧啶。

Deoxycytidine triphosphate (dCTP) is a nucleoside triphosphate that contains the pyrimidine base cytosine. The triphosphate group contains high-energy phosphoanhydride bonds, which liberate energy when hydrolized.

DNA polymerase enzymes use this energy to incorporate deoxycytidine into a newly synthesized strand of DNA. A chemical equation can be written that represents the process: