Giesler is a surname and may refer to:
Christian Giesler (born 1970), bass guitar player for Kreator Hermann Giesler (1898–1987), German architect Jerry Giesler (1886–1962), American lawyer Jon William Giesler (born 1956), American football playe Paul Giesler (1895–1945), German member of the NSDAP Walter John Giesler (1910–1976), American soccer player