头孢唑林（英语：Cefazolin），商品名如新泰林，是一种用来治疗细菌感染的第一代头孢类抗生素。

该药通常使用静脉注射（Intravenous therapy）与肌肉注射（Intramuscular injection）的方式进入人体。

目前该药有下列几种厂牌名称：Ancef®、Cefacidal®、Cefamezin®、Cefrina®、Elzogram®、Faxilen®、Gramaxin®、Kefazol®、Kefol®、Kefzol®、Kefzolan®、Kezolin®、Novaporin®与Zolicef®。

Cefazolin, also known as cefazoline or cephazolin, is an antibiotic used for the treatment of a number of bacterial infections. The drug is usually administered by either intramuscular injection (injection into a large muscle) or intravenous infusion (intravenous fluid into a vein).