Gerald Melzer (born 13 July 1990) is a professional Austrian tennis player.
As a qualifier, he reached the semifinals of Munich in 2015.
He achieved a career-high singles ranking of world No.
68 in November 2016.
He is the younger brother of top Austrian tennis player Jürgen Melzer (hence his nickname, Mini Melts) and is the son of Rudolf Melzer, an Austrian businessman and mayor of Deutsch-Wagram, and Michaela, a saleswoman.