| J. Ellwood Ludwig | |
| Birth Date: | 12 January 1911 |
| Birth Place: | Pottstown, Pennsylvania, U.S. |
| Death Place: | Frederick, Pennsylvania, U.S. |
| Player Sport1: | Football |
| Player Years2: | 1930–1933 |
| Player Team2: | Penn |
| Coach Sport1: | Football |
| Coach Years2: | 1944–1945 |
| Coach Team2: | Bucknell |
| Coach Years3: | 1947–1952 |
| Coach Team3: | Pennsylvania Military |
| Coach Sport4: | Basketball |
| Coach Years5: | 1943–1947 |
| Coach Team5: | Bucknell |
| Coach Years6: | 1947–1953 |
| Coach Team6: | Pennsylvania Military |
| Coach Years7: | 1955–1961 |
| Coach Team7: | Sault Ste. Marie HS (MI) |
| Coach Sport8: | Baseball |
| Coach Years9: | 1944 |
| Coach Team9: | Bucknell |
| Overall Record: | 33–31–3 (college football) 106–74 (college basketball) 10–2 (college baseball) |
J. Ellwood "Woody" Ludwig (January 12, 1911 – January 29, 2001) was an American football, basketball, and baseball coach. He served as the head football coach at Bucknell University from 1944 to 1945 and Pennsylvania Military—now known as Widener University—from 1947 to 1952, compiling a career college football coaching record of 33–31–3.[1] Ludwig was the head basketball coach at Bucknell from 1943 to 1947 and Pennsylvania Military from 1947 to 1953, amassing a career college basketball coaching record of 105–73.[2] [3] He was also the head baseball coach at Bucknell in 1944, tallying a mark of 10–2.[4]