库希特语族（Cushitic）又称作古实语族，是亚非语系（闪含语系）之下的语族之一，分布在埃塞俄比亚、苏丹、索马里、肯尼亚和坦桑尼亚。可以细分为约四个语支：

「库希特」这名字源自《圣经》的人物古实，与闪语族相对。库希特语族最大的组成部份是奥罗莫语，有2.5千万语言人口；其次是通行于索马里、埃塞俄比亚、吉布堤及肯雅的索马里语，有1.5千万语言人口。

The Cushitic languages are a branch of the Afroasiatic language family spoken primarily in the Horn of Africa (Somalia, Eritrea, Djibouti, and Ethiopia), as well as the Nile Valley (Sudan and Egypt), and parts of the African Great Lakes region (Tanzania and Kenya). The branch is named after the Biblical character Cush, who is identified as an ancestor of the speakers of these specific languages as early as 947 CE (in Al-Masudi's Arabic history Meadows of Gold).