Yoshio Kondo was an American biologist and malacologist. He spent virtually his entire life in Hawaii, with the exception of a number of collecting expeditions, primarily to islands in the Pacific Ocean. Kondo had been trained as an electrician and was the chief engineer aboard the Myojin Maru at the time the boat was chartered for Bishop Museum's Mangarevan Expedition. Dr Cooke, the leader of the expedition, had been impressed by Kondo's interest in land shells that he was later hired as Assistant Malacologist at the museum. Kondo later enrolled at University of Hawai'i and received his Bachelor of Arts degree with honors. He then studied at Harvard University, where he received a Ph.D. under the direction of William J. Clench in 1955. He was known to most people as "Yoshi".