Wilfred Anthony Prall (born April 20, 1950) is a former Major League Baseball pitcher. Prall was drafted by the San Francisco Giants in the third round of the 1971 Major League Baseball Draft, then was traded to the Chicago Cubs in 1974 in exchange for catcher Ken Rudolph. Prall's major league career began and ended in 1975 with the Cubs, when he pitched in three games, winning none and losing two.

In season 1, episode 15 of the TV show Prison Break, a Cubs pitcher named "William Prall" is shown in flashback, and referred to as the favorite player of the father of one of the characters, Lincoln Burrows.

• Career statistics and player information from Baseball Reference, or Baseball Reference (Minors), or Retrosheet
• Venezuelan Winter League

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