"William J. "Bill" Weiss", was a baseball historian and statistician. He served as the official statistician for the Pacific Coast League, and edited a weekly newsletter for the California League for over thirty years. For over forty years, he created sketchbooks which eventually covered over 200 books about all of the players in several minor league baseball/minor league and Major League Baseball/Major League organizations. Those sketches are the only records existent of many minor league organizations' and players' statistics.

Weiss began his association with professional baseball in 1948 as the official statistician for the Longhorn League and box office manager for the Abilene Blue Sox of the West Texas-New Mexico League.

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