| Albany Firebirds | |
 Arndt with the Redblacks in 2022 | |
| Born: | August 13, 1993 Sandy Hook, Connecticut |
|---|---|
| Career information | |
| CFL status | American |
| Position(s) | Quarterback |
| Height | 6 ft 5 in (196 cm) |
| Weight | 215 lb (98 kg) |
| College | Western Connecticut |
| Career history | |
| 2021 | Edmonton Elks (offensive assistant) |
| 2022 | Ottawa Redblacks (quarterbacks coach) |
| As player | |
| 2018–2019 | Ottawa Redblacks |
| 2020–2021 | BC Lions* |
| 2024-present | Albany Firebirds |
| *Offseason and/or practice squad member only | |
| Career stats | |
| Pass completions | 86 |
| Pass attempts | 140 |
| Percentage | 61.4 |
| TD–INT | 3-5 |
| Passing yards | 779 |
| |
William Arndt (born August 13, 1993) is a professional gridiron football quarterback for the Albany Firebirds of the Arena Football League (AFL). He attended Western Connecticut State University, where he played college football. Arndt made his professional debut in 2019 for the Ottawa Redblacks.