氨基糖是一类羟基被氨基取代的糖类。有些氨基糖的衍生物如：N-乙酰氨基葡萄糖和唾液酸等也常被归于此类。

氨基糖苷类抗生素通常由氨基糖分子和非糖部分的苷元结合而成，是一类抑制细菌蛋白合成的抗生素。

常见的氨基糖有：

In chemistry, an amino sugar (or more technically a 2-amino-2-deoxysugar) is a sugar molecule in which a hydroxyl group has been replaced with an amine group. More than 60 amino sugars are known, with one of the most abundant being N-Acetyl-d-glucosamine, which is the main component of chitin.