Alf Howard (30 April 1906 – 4 July 2010) was an Australian scientist, educator and explorer.
He was most prominently known for being the last remaining member of the expedition to Antarctica, which was led by Sir Douglas Mawson on board the RRS Discovery in 1929-1931.
Howard served in the capacity of a chemist and the hydrologist aboard the vessel, which included being the individual who was responsible for monitoring the sea-water temperatures and the collection and chemical analysis of sea-water samples.