Kenneth Allan Phelps (born August 6, 1954) is an American former professional baseball designated hitter and first baseman. He played for six different Major League Baseball (MLB) teams from 1980 to 1990, primarily with the Seattle Mariners. Baseball statistician Bill James cited Phelps as an example of a player who is unfairly denied a chance to play in the majors, despite compiling strong minor league statistics.