Josef Anton or Joseph-Antoine Froelicher or Frölicher (November 2, 1790 - 9 January 1866, Paris) was a Swiss architect.
Coming from an old middle-class family from Solothurn, Froelicher begins his architectural studies in Switzerland, receiving his degree in Solothurn in 1809.
He then left for Paris, endowed with a pension from the Swiss government to complete his studies in Paris.
A Legitimist monarchist, he became the official architect to the duchess of Berry, which brought him much ill-feeling at the time of the July Revolution.
He was made a naturalised Frenchman in 1821, and his daughter married the architect Henri Parent.