David George MacDonald (July 23, 1936 – May 30, 1964) was an American road racing champion noted for his successes driving Corvettes and Shelby Cobras in the early 1960s. At the age of 27 he was killed in the 1964 Indianapolis 500. In his four-year racing career, MacDonald competed in 118 races with 52 victories and 75 top-three finishes.