| J. Merrill Blanchard | |
| Birth Date: | 26 April 1881 |
| Birth Place: | Winterport, Maine, U.S. |
| Death Place: | Williamsburg, Virginia, U.S. |
| Alma Mater: | Bowdoin College (1903)[1] |
| Player Sport1: | Football |
| Player Team2: | Bowdoin |
| Player Positions: | Quarterback |
| Coach Sport1: | Football |
| Coach Years2: | 1904–1905 |
| Coach Team2: | William & Mary |
| Coach Years3: | 1906–1907 |
| Coach Team3: | Washington University |
| Coach Years4: | 1908–1909 |
| Coach Team4: | Whitman |
| Coach Years5: | 1910 |
| Coach Team5: | William & Mary |
| Coach Sport6: | Basketball |
| Coach Years7: | 1905–1906 |
| Coach Team7: | William & Mary |
| Coach Years8: | 1906–1908 |
| Coach Team8: | Washington University |
| Coach Sport9: | Baseball |
| Coach Years10: | 1905–1906 |
| Coach Team10: | William & Mary |
| Admin Years1: | 1905–1906 |
| Admin Team1: | William & Mary |
| Overall Record: | 17–29–6 (football) 14–7 (basketball) |
Jesse Merrill Blanchard (April 26, 1881 – April 3, 1914)[2] was an American football player, coach of football, basketball, and baseball, and college athletics administrator. He served as the head football coach at the College of William & Mary (1904–1905, 1910), Washington University in St. Louis (1906–1907), and Whitman College (1908–1909).
Blanchard played college football as a quarterback at Bowdoin College.[3]
Blanchard was the first head coach of the William & Mary Tribe men's basketball team, in 1905–06.[4] In the inaugural season of William & Mary's basketball program, Blanchard led the team to a 4–1 record.[4] It was his first and last season with the Tribe despite the success. Blanchard also coached the William & Mary football team from 1904 to 1905 and again in 1910, compiling a record of 6–14–2.[5]