Rælingen is a village and municipality in Akershus in Viken county, Norway. It is part of the traditional region of Romerike. The administrative centre of the municipality is the village of Fjerdingby. Rælingen was separated from the municipality of Fet on 1 July 1929.
Øyeren is a lake in the Glomma River watershed, southeast of Lillestrøm. It is located within the municipalities of Enebakk, Skedsmo, Fet and Rælingen in Akershus county and Spydeberg and Trøgstad municipalities in Østfold county.
Marikollen is a ski jumping hill located at Rælingen in Akershus, Norway. It is the site of Marikollen skisenter which was opened in 1959 and is owned by Rælingen Skiklubb. There is an alpine ski slope, ski jump and sledding facility. The facility hosted one FIS Ski jumping World Cup event in 1987. Fredrik Bjerkeengen holds the ski slope record.
La Réserve naturelle de Ramstadslottet est une réserve naturelle norvégienne qui est située dans les municipalités de Rælingen et Lørenskog, dans le centre de la zone forestière d'Østmarka, dans le comté de Viken. La municipalité d'Oslo est devenue propriétaire de la zone forestière en 1965, et la zone était déjà administrativement protégée.