Henry Meredith Nelly (January 1, 1878 – December 14, 1928) was an American college football player and coach and United States Army officer.

He served as the head football coach at the United States Military Academy from 1908 to 1910, compiling a record of 15–5–2.

Nelly was born on January 1, 1878, in West Virginia.

[2] # denotes interim head coach

This biographical article relating to a college football coach first appointed in the 1900s is a stub.