帝国服务奖章（，简称ISM」）是一枚附属于帝国服务勋章的奖章。该奖章是爱德华七世于1902年8月8日根据帝国服务令章程设立。它颁发给退休时完成至少25年服务的选定公务员。
外形.When originally created the Imperial Service Medal was a seven-pointed star, or a laurel wreath for women, in the same pattern as the Imperial Service Ord