Frederick William Luderus (September 12, 1885 – January 5, 1961) was an American professional baseball player who played first base in the major leagues from 1909 to 1920 for the Philadelphia Phillies and Chicago Cubs.

Luderus was a member of the 1915 Phillies team that won the National League pennant.

He rebuilt his home in Three Lakes, Wisconsin, with the help of architect, neighbor and Phillies teammate Cy Williams.

[1] In a 12-year, 1346-game major league career, Luderus compiled a .277 batting average (1344-for-4851) with 570 runs, 251 doubles, 54 triples, 84 home runs, 642 RBI, 414 base on balls, 429 strikeouts, .340 on-base percentage and .403 slugging percentage.

In the 1915 World Series he batted .438 (7-for-16) with 6 RBI and hit the only home run for the Phillies in Game 5.