小飞鼠（学名：Pteromys volans）为松鼠科飞鼠属的动物。在中国大陆，分布于黑龙江、河北、河南、山西、**、吉林、甘肃等地，多栖息于森林。该物种的模式产地在芬兰。

The Siberian flying squirrel (Pteromys volans) is an Old World flying squirrel with a range from the Baltic Sea in the west to the Pacific coast in the east. It is the only species of flying squirrel found in Europe. It is considered vulnerable within the European Union where it is found only in Finland, Estonia and Latvia.