Region Zealand (Danish: Region Sjælland) is an administrative region of Denmark. It is one of the five classified NUTS-2 statistical regions of Denmark. It was established on 1 January 2007 as part of the 2007 Danish Municipal Reform, which abolished the traditional counties ("amter"). The region incorporates the southernmost parts of the country, and encompasses an area of 14,197 km (5,481 sq mi). Zealand will merge with the Capital Region of Denmark on 1 January 2027 to create the Region of Eastern Denmark.
The region shares the island of Sjælland (Zealand) with the neighbouring Capital Region of Copenhagen. The region also includes the islands of Lolland, Falster, and Møn. It incorporates the provinces of Østsjælland and Vest-og Sydsjælland, which consists of 17 municipalities. With a population of just over 0.85 million, it is the second least populated of the all the regions in Denmark. The largest city is Roskilde.