Greetings is a 1968 American black comedy film co-written and directed by Brian De Palma. A satirical film about men avoiding the Vietnam War draft, it marks Robert De Niro's first major role.

It is the first American film to receive an X rating by the Motion Picture Association of America (MPAA), although it was later given an R rating. However, contrary to some allegations, it was not the first film to receive an X-rating in the United States; the first film to hold an X-rating in the country was in fact French-British film The Girl on a Motorcycle (also known as Naked Under Leather).

De Niro reprised the character of Jon Rubin in the 1970 film Hi, Mom!, also directed by De Palma. The film was entered into the 19th Berlin International Film Festival, where it won a Silver Bear award.