Bob Zmuda is an American writer, comedian, producer and director best known as the sidekick, co-writer and friend of cult personality Andy Kaufman.

Bob Zmuda occasionally portrayed Kaufman's Tony Clifton character on stage and for television appearances. In a 2006 interview, Zmuda told the Opie and Anthony Show that it was him as Tony Clifton with David Letterman, and that Letterman did not find out until years after.