På Österåker ("At Österåker") is a live album by country singer Johnny Cash released on Columbia Records in 1973, making it his 43rd overall release. The album features Cash's concert at the Österåker Prison in Sweden held on October 3, 1972. Its predecessors in concept are the more notable At San Quentin and At Folsom Prison. Unlike the aforementioned, På Österåker does not contain any of Cash's most well-known songs; it does, however, include a version of Kris Kristofferson's "Me and Bobby McGee". "Orleans Parish Prison" was released as a single, faring rather poorly on the charts. Cash had previously recorded "I Saw a Man" for his 1959 album, Hymns by Johnny Cash.
The majority of the songs featured in the original release would remain unique to this concert recording, though Cash would later record a studio version of "City Jail" for his 1977 album, The Last Gunfighter Ballad. Some lyrics from "City Jail" taken from the protagonist's dialogue with a policeman would later be incorporated by Cash into live performances of "Orange Blossom Special".