| Alvin Twitchell | |
| Birth Date: | 13 May 1892 |
| Birth Place: | Beaver, Utah, U.S. |
| Death Place: | Pueblo, Colorado, U.S. |
| Coach Sport1: | Football |
| Coach Years2: | 1922–1924 |
| Coach Team2: | BYU |
| Coach Years3: | 1941 |
| Coach Team3: | Pueblo Centennial HS (CO) |
| Coach Sport4: | Basketball |
| Coach Years5: | 1920–1925 |
| Coach Team5: | BYU |
| Coach Years6: | 1926–1930 |
| Coach Team6: | Colorado College |
| Overall Record: | 5–13–1 (college football) 100–51 (college basketball) |
Alvin Greenwood Twitchell (May 13, 1892 – May 10, 1955)[1] was an American football and basketball coach. He was the first head football coach at Brigham Young University (BYU), serving from 1922 to 1924 and compiling a record of 5–13–1. Twitchell was also the head basketball coach at BYU from 1920 to 1925 and at Colorado College from 1926 to 1930, amassing a career college basketball mark of 100–51.
Twitchell started his football coaching tenure at BYU in 1922 with a game against Utah Agricultural in Logan, Utah. BYU lost the game 41–3. Twitchell finished the year with a record of 1–5 with the only win coming against the Wyoming. His career record at BYU was 5–13–1.