Anton Erhard Martinelli (1684 – September 15, 1747) was an Austrian architect and of Italian descent. Martinelli was born in Vienna. He was the son of architect Franz Martinelli. Anton Erhard Martinelli supervised the construction of several important buildings in Vienna, such as the Karlskirche and the Palais Schwarzenberg or the remodelling of the Deutschordenskirche. He designed the plans of the in Graz and of (Invalidus-palota) in Budapest, now the city hall. He died in Vienna in 1747.