Winnetou and Old Firehand (German: Winnetou und sein Freund Old Firehand) is a 1966 western film directed by Alfred Vohrer and starring Pierre Brice, Rod Cameron, and Marie Versini.

It was made as a co-production between West Germany and Yugoslavia, as part of a series of Karl May adaptations made during the decade. It was not a box-office success and only one further film was made. The film was released by Bavaria Film in Germany, and by its parent company Columbia Pictures in the United States (under the title Thunder at the Border).

It was made at the Spandau Studios in Berlin and on location in Croatia. The film's sets were designed by the art director Vladimir Tadej.