Drøbak is a city and the centre of the municipality of Frogn, in Akershus county, Norway. The city is located along the Oslofjord, and has 13,358 inhabitants.Drøbak and Frogn was a established as a parish on its own through a royal decree Sept. 8, 1823. It had been a part of Ås parish.Drøbak was established as a municipality January 1, 1838 (see formannskapsdistrikt). It was merged with Frogn January 1, 1962.
Traditionally, Drøbak was the winter harbour of Norway's capital, Oslo, since in severe winters the fjord will freeze from outside Drøbak all the way up to Oslo. It had a city status between 1842 and 1962, upon which point the municipality was merged into the rural municipality Frogn and lost its city status. The city status was regained by the municipality council on 13 February 2006. It was also decided that adjacent villages such as Heer would be included within the city.