Elroy Simon Guckert (May 17, 1900 – September 3, 1940) was an American football and basketball coach.
He served as the head football coach at Hillsdale College in Hillsdale, Michigan from 1925 to 1926, compiling a record of 9–5–2. He was also the head basketball coach at Hillsdale tallying a mark of 5–9. He held that position for the 1925 and 1926 seasons. His coaching record at Hillsdale was 9 wins, 5 losses and 2 ties. As of the conclusion of the 2009 season, this ranks him #11 at Hillsdale in total wins and #9 at the school in winning percentage (.625). He was a graduate of Denison University.
Guckert is said to have died when he disappeared from ship in 1940.