Västerlånggatan, Pedestrian street in Gamla Stan, Stockholm, Sweden.

Västerlånggatan is a pedestrian street running through Stockholm's medieval district with narrow cobblestone paths and multicolored wooden buildings housing shops and cafes. The street forms a continuous corridor of historic facades and traditional storefronts that define the old quarter.

The street originated in the 13th century as the main western route for merchants moving through medieval Stockholm. It evolved into a central commercial artery and has remained the heart of the district since its founding.

The street's name was officially fixed in 1885, replacing Stadssmedjegatan for the northern section once home to blacksmiths. Mid-20th-century Stockholmers called it "kappgatan" (the coat street) because nearly all the city's coat shops were here; Åströms kappaffär, founded in 1911, still trades at number 40.

The street is easy to walk and connects to several public transportation options including nearby metro stations and bus stops. It is best visited during early morning hours or on weekdays when foot traffic is lighter.

A red sandstone plaque on the wall of Palmstedt's house, next to No. 9, marks the old border between Uppland and Södermanland with the inscription "UPLANDz och SUDERMANNALANDz SKILLNAD". Since the 17th century the actual provincial boundary has run through Söderström, so the plaque no longer sits on the border line.