Store Urevatn or Urevatn is a lake in the municipality of Bykle in Agder county, Norway. The 14.61-square-kilometre (5.64 sq mi) lake lies about 13 kilometres (8.1 mi) west of the village of Hoslemo and about 15 kilometres (9.3 mi) northwest of the municipal centre of Bykle. The lake sits at an elevation of 1,164 metres (3,819 ft) above sea level, high up in the Setesdalsheiene mountains, just north of the mountains Urevassnutene and Djuptjønnuten and just west of Snjoheinuten.

The northeastern arm of the lake has a dam on it which leads to a canal that brings the out-flowing water to the nearby lake Vatndalsvatnet.

The lake has large populations of brook trout and brown trout, which makes it a popular fishing location.

• List of lakes in Aust-Agder
• List of lakes in Norway