Leonard Brodbeck Swormstedt (October 6, 1878 – July 19, 1964) was a starting pitcher in Major League Baseball who played between 1901 and 1906 for the Cincinnati Reds (1901–1902) and Boston Americans (1906).
Swormstedt batted and threw right-handed.
He was born in Cincinnati, Ohio.
In a three-season career, Swormstedt posted a 3–4 record with 22 strikeouts a 2.22 ERA in eight appearances, including seven complete games, 10 walks, 58 hits allowed, and 65.0 innings of work.
Swormstedt died at the age of 85 in Salem, Massachusetts.