Jerry Ball (born Jerald Truman Ball, December 16, 1932, Lincoln, Nebraska, U.S.A.; died August 14, 2019, Walnut Creek, California), college professor of mathematics and haiku poet active in organizing group activities for the Yukuharu Haiku Society (later the Yuki Teikei Haiku Society), including a members’ anthology, the annual YTHS haiku retreat at Asilomar, California, and service as society president. Ball cofounded the Haiku North America conferences, coedited The San Francisco Haiku Anthology, founded the Southern California Haiku Study Group, and co-organized the Haiku Pacific Rim conferences. He last resided in Walnut Creek, Calif.