Nadderud is a district in eastern Bærum, Norway. It was formerly farmland under one of Bærum's larger farms, named Nadderud, but since the 1950s it has been built up with housing, several schools and sporting facilities. The best known facility, which has made the name Nadderud nationally known, is the stadium Nadderud stadion. Parts of the district Nadderud have been absorbed by the growing suburban centre Bekkestua.
Today's meaning of Nadderud is the district north and west of Bekkestua, northeast of Gjønnes, east of Haslum, south of Hosle and southwest of Grav.
The district was formerly a watery area, with several small creeks combining into one before emptying into Øverlandselva. Most of the Nadderud Watershed (Norwegian: Nadderudvassdraget) has been led underground through a pipe system. One creek, Eiksbekken/Gravsbekken, originates north of Eiksmarka, and portions of it still exist. Another creek, Nadderudbekken, originated at Eikeli and flowed more or less in a straight southwestern direction, and at one point formed the pond Nadderuddammen. It was used for leisure ice skating during the winter, but exists no more. Another minor creek originated at Lønnås, and another creek Hoslebekken originated at Hosle. This is the only other significant portion of the watershed which is still visible. The three main creeks confluated south of Gjønnes farm. After this, much of the riverbed is used as a pedestrian road between Gjønnes and the road Kirkeveien at Haslum. Where the creek crossed Kirkeveien, there was formerly a bridge, but it has been filled with solid material.
The etymology of the name Nadderud is uncertain, but it has been recorded as Naderud (1434 and 1617), Narderudt (1557), Nadderudt (1578), but also Nadderud in older times (1594 and 1723). The suffix -rud indicates that someone cleared an area to make a farm. The farm Nadderud belonged to Hovedøya Monastery before the Protestant Reformation, then to the crown before getting a private owner from 1663, Jens Paulsen Grav. He was succeeded as owner by his son-in-law, and during this time the farm was a bailiff seat as well.Limestone burning was also conducted. Limestone was notably delivered to Akershus Fortress in 1629, to Moss in 1634 and to the Royal Palace in 1827.