Donald Frederick Bacon (6 April 1926 – 28 August 2020) was a New Zealand microbiologist. In 1966, he was appointed the inaugural professor of microbiology at Massey University, where he remained until his retirement in 1989. Bacon was born in Gisborne, New Zealand. He was known for his works relating to the genetics of "E. coli" and associated bacteriophages. He retired in 1989.