Kálmán Giergl (born as Koloman Giergl, 29 June 1863 in Pest, Hungary, Austrian Empire – 10 September 1954 in Verőce, Hungary), was a Hungarian-German architect and a significant figure in the Austro-Hungarian eclectic architectural style.
Giergl's family originated from the Tyrol region but for generations were known for their artistic endeavors in Pest.
This is the period when he also began to work with the other rising star of the Hauszmann office, Flóris Korb (1860–1930).
In 1893 the two established their own partnership, their first major work being the Pesti Hirlap headquarters and also some of the many now demolished pavilions for the 1896 millenary exhibition.
They built the twin Klotild Palaces on the approach to the Elizabeth bridge in 1901 and won the competition for the Music Academy building.