Hästhuvudet 13, Commercial building at Sveavägen and Kungsgatan intersection, Stockholm, Sweden

Hästhuvudet 13 is a commercial building at the intersection of Sveavägen and Kungsgatan in Stockholm, featuring six floors with brown-beige facades divided by pilasters. The structure displays a distinctive concave corner design that accommodates the street junction while housing office and retail spaces.

The block Hästhuvudet was already recorded as Hästhufwud in 1653, when Norrmalm was being planned. The present building was erected in 1918–1919 to plans by Hjalmar Westerlund and facades by Sven Wallander, who was then also designing the nearby Norra Kungstornet. In 1935 the ground floor was rebuilt for Martin Olsson's food store and the facades simplified, replacing four granite columns with two pilasters.

The corner's ground floor housed Feiths konditori's music café from 1919 to 1935, known as "Feiths hörna". Martin Olsson then opened a delicatessen there, one of the first shops in Sweden to sell ready-prepared snails and chickens; his "Kalaskaffe" gave the corner the name "Kalas-hörnan", painted on the shop's awning.

The building sits at a prominent street intersection in central Stockholm and is easily visible from the sidewalk. Its corner location makes the distinctive architecture apparent from multiple viewing angles, and the ground-floor retail spaces are openly accessible to pedestrians.

The concave corner facing Kungsgatan/Sveavägen has long carried large illuminated advertising on its window sills and cornice, documented from neon tubes in 1945 to LEDs in 2021. The building has been owned by Hufvudstaden since 1929.