| John W. Weimer | |
| Birth Date: | 13 November 1883 |
| Birth Place: | Reading, Pennsylvania, U.S. |
| Death Place: | York, Pennsylvania, U.S. |
| Alma Mater: | Gettysburg |
| Player Sport1: | Baseball |
| Player Years2: | 1906–1907 |
| Player Team2: | Dubois Miners |
| Player Years3: | 1908 |
| Player Team3: | Oil City Oilers |
| Player Years4: | 1908 |
| Player Team4: | Harrisburg Senators |
| Player Years5: | 1908 |
| Player Team5: | New Castle Nocks |
| Player Years6: | 1909–1910 |
| Player Team6: | New Orleans Pelicans |
| Player Years7: | 1911–1913 |
| Player Team7: | Albany Babies |
| Player Years8: | 1915 |
| Player Team8: | Gettysburg Patriots |
| Coach Sport1: | Football |
| Coach Years2: | 1911–1917 |
| Coach Team2: | Bloomsburg |
| Coach Years3: | 1919 |
| Coach Team3: | Allentown HS (PA) |
| Coach Sport4: | Basketball |
| Coach Years5: | 1911–1919 |
| Coach Team5: | Bloomsburg |
| Overall Record: | 32–22–6 (college football) 40–39 (college basketball) |
John William "Jake" Weimer (November 13, 1883 – November 30, 1940) was an American football, basketball, and baseball player and coach.[1] He served as the head football coach at Allentown High School in Allentown, Pennsylvania during the 1919 season.[2]