Stockholm Municipality or the City of Stockholm (Swedish: Stockholms kommun or Stockholms stad) is a municipality in Stockholm County in east central Sweden. It is the largest of the 290 municipalities of the country in terms of population, but one of the smaller in terms of area, making it the most densely populated. It is also the most populous municipality in the Nordic countries.

Although legally a municipality with the official proper name Stockholms kommun, the municipal assembly (kommunfullmäktige) has decided to use the name Stockholms stad (City of Stockholm in English) whenever possible. This is purely nominal and has no effect on the legal status of the municipality.