Yūbari (夕張) was an experimental light cruiser built between 1922 and 1923 for the Imperial Japanese Navy (IJN). Although a test bed for various new designs and technologies, she was commissioned as a front-line warship and participated in numerous combat operations during World War II before she was sunk by the U.S. Navy.^[​1] Designs pioneered on Yūbari had a major impact on future Japanese warship designs.