Docetaxel is a chemotherapy drug used in the treatment of cancer. It has been developed after the related drug, paclitaxel. It is derived from a species of yew, Taxus baccata. Together with paclitaxel, it forms the drug category of the taxanes.

It is mainly used in lung cancer, breast cancer, prostate cancer and stomach cancer.

It is marketed as Taxotere in the U.S. by sanofi-aventis