麂是一类体型较小的鹿，又称为吠鹿或肋面鹿。麂是现今所知最早的鹿，于一千五百万至三千五百万年前开始出现，其化石仍常在法国和德国的中新世地层中被挖掘出来。

现存的麂主要分布在以东南亚为中心，东至中国、印度尼西亚，西至印度、斯里兰卡的广大地区，共分为9种：

Muntjacs, also known as barking deer and Mastreani deer, are small deer of the genus Muntiacus. Muntjacs are the oldest known deer, thought to have begun appearing 15–35 million years ago, with remains found in Miocene deposits in France, Germany and Poland.