Ervin Y. Galantay (born as Ervin Iván Galántay, 14 October 1930 Budapest, Hungary- 30 October 2011, Zermatt, Switzerland) was a Hungarian-American architect. He married to Karla Jay Noell (New York) in 1959. They had two sons Roy (born in 1961) and Richard (born in 1964). He lived most of his life in Cossonay, Switzerland, where he was a Professor Emeritus at the Ecole Polytechnique Fédérale de Lausanne.