Lommedalen is a rural community in a small valley in Bærum municipality in the county of Akershus, Norway.

Lommedalen valley opens up at Bærums Verk and runs about 5 kilometers to the north.

[1] Lommedalen includes wooded areas, some agricultural land, and residential zones.

Lake Burudvann is a popular hiking destinations and seaside resort located in the area.

Lommedalsbanen is a narrow gauge railway museum located at the top of the valley.