Daniel Katz, Dan Katz or Danny Katz may refer to:
Daniel Katz (psychologist) (1903–1998), American psychologist Daniel Katz (environmental activist) (born 1961), American environmentalist writer, speaker and activist Daniel Katz (politician) (born 1961), Argentine politician Daniel Katz (writer) (born 1938), Jewish-Finnish writer Dan Katz (born 1987), American lawyer Dan Katz (podcaster) (born 1985), American podcaster Danny Katz (born 1963), Australian columnist and author