四角羚（Tetracerus quadricornis），又名四角羚羊，是分布在南亚辽阔森林的羚羊。牠们主要分布在印度泰米尔纳德邦恒河平原以南的地方，东至奥利沙邦，西至吉尔。也有一些在尼泊尔的干旱森林生活。

四角羚肩高超过半米，重约20公斤。牠们是黄褐色的，腹部及脚内侧是白色的。牠们的脚很幼，前肢有黑色斑纹。

雄性四角羚有角，一般有四只，两只在耳朵之间，另一对在前额上。雄羊出生后几个月就会长第一对角，第二对要到14-15个月大才会长出。牠们不会脱角，但打斗时也会破损。

四角羚栖息在干旱的落叶林，且是独居的。牠们可能是地盘性的。雄羊在繁殖季节会对其他雄羊带有攻击性。

The four-horned antelope (Tetracerus quadricornis), or chousingha, is a small antelope found in India and Nepal. This antelope has four horns, which distinguish it from most other bovids, that have two horns (sparing a few such as the Jacob sheep). The sole member of the genus Tetracerus, the species was first described by French zoologist Henri Marie Ducrotay de Blainville in 1816. Three subspecies are recognised. The four-horned antelope stands nearly 55–64 centimetres (22–25 in) at the shoulder and weighs nearly 17–22 kilograms (37–49 lb). Slender with thin legs and a short tail, the four-horned antelope has a yellowish brown to reddish coat. One pair of horns is located between the ears, and the other on the forehead. The posterior horns are always longer than the anterior horns, which might be mere fur-covered studs. While the posterior horns measure 8–12 centimetres (3.1–4.7 in), the anterior ones are 2–5 centimetres (0.79–1.97 in) long.