Ron Tabb (born August 7, 1954) is a retired male long-distance runner from the United States, who competed in the late 1970s and early 1980s in the men's marathon. He won the 1981 edition of the Paris Marathon with England's Dave Cannon. He won the 1983 Beijing Marathon and competed at the 1983 World Championships in Athletics later that year, finishing in 18th place overall.
Tabb attended Central Missouri State University between 1972–1977 and was inducted into their Hall of Fame in 2004. He married Mary Decker in 1981 but they divorced two years later.