Aaron Messiah (1858-1940) was an early 20th-century French architect.
Messiah was court architect to Leopold II of Belgium, but his most famous work was the Villa Ephrussi, completed in 1912.
Despite its historicism, the villa included an up-to-date porte-cochere, where visitors could enter and leave automobiles without being exposed to the elements.
Aaron was the father of the architect Gaston Messiah (1885-1962).