Glucoside is a carbohydrate-containing compound that yields a glucose and a non-sugar component (either an alcohol or phenol) when decomposed by the process of hydrolysis.

The natural glucosides are important in plant metabolism, and many polysaccharides, such as cellulose, starch, and glycogen, are regarded chemically as glucosides. They may be used as drugs, coloring agents, and aromatics.