Rykkinn is a commuter town in the north-west of Bærum, Akershus county, Norway with 9217 inhabitants (2022).

Most of Rykkinn's buildings and infrastructure were built in the early 1970s due to the growing demands for housing near Oslo.

Rykkinn also has a shopping mall, which used to contain Norway's highest educational facility for commercial trading - Kjøpmannsinstituttet.

Harald Eia, a Norwegian comedian who has often included references to Rykkinn in his performances, was born here.

Nikolaj Frobenius, an author and screenwriter, wrote an autobiographical novel about the years he lived in Rykkinn.