Frank M. "Wildfire" Schulte (September 17, 1882 – October 2, 1949) was an American outfielder in Major League Baseball (MLB) who played for the Chicago Cubs, Pittsburgh Pirates, Philadelphia Phillies, and Washington Senators from 1904 to 1918.

He helped the Cubs win four National League (NL) championships and two World Series.

In 1911, Schulte won the NL Chalmers Award, a precursor to the modern-day MVP award; that year, Schulte had become the first of only four players in history to join the 20–20–20–20 club, hitting 30 doubles, 21 triples, and 21 home runs, and stealing 23 bases.

He also became the first player in major league history to have more than 20 doubles, triples, home runs, and stolen bases in a season.

His hitting declined, and he then played for the Philadelphia Phillies and Washington Senators until the 1918 season, his last as a major leaguer.