A. C. Missias (born Andrea C. Missias, 1967, Okinawa, Japan), PhD neuroscientist and editor in applied mathematics as well as haikai poet, editor, and critic. One of the earliest participants in the Shiki Internet Haiku Salon, she won the 1st Shiki International Haiku Contest, and a trip to Japan. Founder and first editor of Acorn: A Journal of Contemporary Haiku, noted critic and author of articles on haikai, and columnist for the HSA journal Frogpond. Has lived in Philadelphia since 1996.