Oasen Storsenter is a shopping centre in Norheim in Karmøy, Norway.
After Karmøy was founded as a result of merging several municipalities in 1965, a fairly large part of the new municipality was located on the mainland, and within a few years became the quickest growing part of Karmøy.
Unlike the various villages on the island proper, the mainland lacked a centralized area for shops and businesses.
During the first year the shopping centre only had 6000 m2 available, but this was expanded to 10,000 m2 in 1978, with further expansions in 1985, 1996, 2002 and 2014.
Oasen Storsenter was bought by Olav Thon in 1998 for 160 million kroner.