Dekanhuset, Uppsala, Historic building in Uppsala, Sweden

Dekanhuset is a pale pinkish-beige, flat-roofed building on Biskopsgatan 2, between Uppsala Cathedral and Helga Trefaldighets Church. Its facade has about eight vertical rows of tall rectangular windows over at least three storeys, a darker band above the stone foundation, and a flagpole on the roof. It now holds offices of the National Property Board.

Dekanhuset is first mentioned in 1326, when Bishop Sigfrid of Skara, formerly dean in Uppsala, gave the house to the deanery. A fire destroyed it in 1447 and a stone house replaced it in 1452. In 1741 academy rent master Petter Julinsköld bought it and rebuilt it into Uppsala's largest private palace by 1746. After his death in 1768 embezzlement of university funds was discovered and the palace passed to Uppsala University.

The name Dekanhuset is a late construction. In 1937 a cultural-historical survey found parts of the stone foundation matched the dean's medieval stone house on an old Uppsala map, so professor Knut B. Westman, then dean of the theology faculty, had the building renamed from "Gamla seminariet".

Dekanhuset stands at Biskopsgatan 2, in the block between Uppsala Cathedral and Helga Trefaldighets kyrka. Since the 2005–2006 restoration the building has been used as offices by Statens fastighetsverk, so it is a working site rather than a museum; the facade with its rows of tall windows and the flagpole on the roof can be seen from the street.

Petter Julinsköld's embezzlement of university funds led to the building's transfer to Uppsala University ownership after his death in 1768.