Robert Louis "Bob" Karp (1911–1975) was an American comics writer. He began working for the Walt Disney Company in the 1930s, and from 1938 to 1974, he wrote the scripts for the daily Donald Duck newspaper strips which were illustrated by Al Taliaferro and, after Taliaferro's death in 1969, by Frank Grundeen. He also scripted the comic book Donald Duck Finds Pirate Gold based on an unproduced Walt Disney Studio animated feature (drawn by Carl Barks and Jack Hannah).
Bob Karp's brothers, Hubie and Lynn, were in the comics field as well. From 1946 to 1950, Bob (writer) and Lynn (illustrator) did the newspaper strip The Middles (reported by Disney comics historian Alberto Becattini to have appeared in Australian newspapers as late as 1955).