Henry Peter Reitz (June 29, 1867 – November 10, 1914), nicknamed "Heinie", was an American second baseman in Major League Baseball who played for the Baltimore Orioles, Washington Senators, and Pittsburgh Pirates.

Although Chief Wilson surpassed both of them with his 36 triple season in 1912, Reitz and Orr still hold second place for this record.

[4] Reitz's two bases loaded triples in a single game matched a feat achieved by Sam Thompson in 1887.

[2] After one season in Washington, Reitz was traded to the Pittsburgh Pirates in exchange for Dick Padden, Jimmy Slagle, and Jack O'Brien.

[2] Reitz played 34 games for Pittsburgh in the 1899 season, and was traded in March 1900, to Milwaukee of the American Association in exchange for a player to be named later.