BP-skylten, Glass mosaic advertising sign in Södermalm, Stockholm, Sweden.

BP-skylten is a freestanding art sign in Södermalm, Stockholm, made from roughly 50,000 glass mosaic pieces in green, yellow, and black. It measures just over 3 meters (10 feet) in both height and width and stands beside a residential building from 2000 on Ringvägen.

The BP mosaic sign was created in 1954 for the fuel station at Ringvägen 94, where it formed part of the facade facing the street. When BP's Swedish station chain merged into Statoil in 1993, the sign was left in place. The station was demolished in 2000 and a residential building rose on the site, but the 1998 detailed plan for the Halmen 1 block required the mosaic to be preserved, and it was restored to its old spot by Eriksdalslunden.

The mosaic emerged when large advertisements shaped city views and is now valued as a window into how industrial-era design looked and functioned. Today it shows how ordinary commercial signs can become protected pieces of a city's visual identity.

The sign is located at the edge of the neighborhood near Eriksdalslunden park and is easily reached on foot. Since it stands on a street corner, visitors can view it at any time without entering a building.

The mosaic forms the background of the cover images on Carla Jonsson's solo record Skakad & Rörd, released in 1993. The sign also received the award "Sweden's most beautiful wall advertisement" and is K-marked.