Follo is one of three districts in the county of Akershus, Norway. It is located between Oslo and Østfold and includes the southwestern part of the county's area east of Oslo, namely the municipalities Frogn, Oppegård, Ski, Vestby, Ås, Nesodden, and Enebakk (the latter is by some regarded as belonging to Romerike, rather than Follo). Follo covers around 819 km², and has a population of 121 368 (October 1, 2007) [1].
Follo is one judicial district, Follo. The district court is located in the regional centre of Ski, which is also the largest town in the area. The municipalities of Frogn and Vestby have coastlines along the Oslofjord. Ås and Oppegård have coastlines along the Bunnefjord (a part of the Oslofjord that extends south-east), and Nesodden has coastlines along both fjords.
All municipalities in Follo are within an hour's drive from Oslo, and large parts of the workforce actually work in Oslo. Apart from the long coastline, Follo is has extensive woods and farmland, and only little industry. Most parts of Follo are well suited for outdoor activities, and many athletes have come from this district – such as Trine Hattestad (javelin), Jon Rønningen (wrestling), and Siren Sundby (sailing).
The Norse form of the name was Folló (from *Foldló). The first element is the old name of Oslofjord (see Østfold and Vestfold), the last element is ló f 'meadow' (see also Lom and Oslo).