| L. Fred Gieg | |
| Birth Date: | 7 February 1890 |
| Birth Place: | Millville, New Jersey, U.S. |
| Death Place: | Bryn Mawr, Pennsylvania, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1909–1912 |
| Player Team2: | Swarthmore |
| Player Sport3: | Basketball |
| Player Years4: | 1909–1913 |
| Player Team4: | Swarthmore |
| Player Years5: | 1913–1917 |
| Player Team5: | Trenton Royal Bengals |
| Player Positions: | Tackle (football) |
| Coach Sport1: | Football |
| Coach Years2: | 1913–1914 |
| Coach Team2: | Swarthmore |
| Overall Record: | 4–9–2 |
Louis Frederick Gieg (February 7, 1890 – April 29, 1966) was an American football and basketball player and coach. He served as the head football coach at Swarthmore College from 1913 to 1914, compiling a record of 4–9–2.[1]
Raised in Millville, New Jersey, Geig attended the Pennington Seminary (now The Pennington School), dropping out in order to play basketball professionally.[1]