| Bill Belk | |
| Position: | Defensive end |
| Number: | 72 |
| Birth Date: | 19 February 1946 |
| Draftyear: | 1968 |
| Draftround: | 6 |
| Draftpick: | 153 |
| College: | Maryland Eastern Shore |
| Teams: |
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| Statlabel1: | Interceptions |
| Statvalue1: | 1 |
| Statlabel2: | Touchdowns |
| Statvalue2: | 1 |
| Statlabel3: | Fumble recoveries |
| Statvalue3: | 4 |
| Birth Place: | Lancaster, South Carolina, U.S. |
William Arthur Belk (born February 19, 1946) is a former American football defensive lineman in the National Football League (NFL). He was drafted by the San Francisco 49ers in the 6th round of the 1968 NFL/AFL draft. He played college football at Maryland Eastern Shore. He played for the Toronto Argonauts in the Canadian Football League in 1975 and 1976. He played a total of 9 years of professional football.
Belk was inducted into the University of Maryland Eastern-Shore Hall of Fame in 1984. His collegiate career spanned from 1964 to 1968. In college, Belk was a two-way starter atoffensive and defensive end. He received All-Conference honors in 1966 and 1967, and was co-captain of the team his senior year. While in college, Belk was a student athlete, making the honor roll and dean’s list. He graduated in 1968, earning a bachelor's degree in Business Education.
In the NFL, Belk proved to be a versatile, reliable, and very intelligent football player, starting at both defensive end and tackle. One of his coaches, Dick Nolan, made this testimony in reference to Belk, “What I like about Bill is that he's very smart. He knows exactly what he's doing out there and can adjust to any situation."