Seinfeld is an American television sitcom starring Jerry Seinfeld. Seinfeld may also refer to: "Seinfeld" (Curb Your Enthusiasm), an episode of Curb Your Enthusiasm People with the surname Jerry Seinfeld (born 1954), American comedian and actor Jerry Seinfeld (character), his character on the TV series Evan Seinfeld (born 1965), lead singer of Biohazard, second cousin of Jerry Seinfeld Jessica Seinfeld (born 1971), American author and philanthropist, wife of Jerry Seinfeld John H. Seinfeld (born 1942), American professor and scientist (1860-1924), Polish politician Adam Szejnfeld (; born 1958), Polish politician