钩盲蛇（学名：Ramphotyphlops braminus）是蛇亚目盲蛇科下的一种无毒蛇种，主要分布在非洲及亚洲，不过现在钩盲蛇的分布已推广至世界各地。钩盲蛇是栖息于地洞的蛇种，由于体型细小，加上善于掘洞，因此经常被误认为蚯蚓，唯一分别就是钩盲蛇的身体并没有分成明显的段节。另外，钩盲蛇的学名，是由印度教名词「Brahmin（婆罗门）」拉丁化而来的。目前钩盲蛇下尚未有任何被确认的亚种。钩盲蛇在中国亦被称为地鳝及铁丝蛇。

Ramphotyphlops braminus, commonly known as the brahminy blind snake and other names, is a blind snake species found mostly in Africa and Asia, but has been introduced in many other parts of the world. Completely fossorial, they are often mistaken for earthworms, except that they are not segmented. The specific name is a Latinized form of the word Brahmin, which is a caste among Hindus. No subspecies are currently recognized.