Reinevatn (Reindeer Lake) is a lake in the municipality of Bykle in Aust-Agder county, Norway. It's located south of the lakes Store Urevatn and Vatndalsvatnet in the Setesdalsheiene mountains in the Setesdal valley. The lake has an area of about 2.86 square kilometres (1.10sqmi) and is located at an elevation of 1,170 metres (3,840ft) above sea level.