| Position: | Defensive end / defensive tackle |
| Number: | 56, 82 |
| Birth Date: | 3 July 1943 |
| Birth Place: | Norfolk, Virginia, U.S. |
| Death Place: | Knoxville, Tennessee, U.S. |
| Afldraftyear: | 1965 |
| Afldraftround: | 1 |
| Afldraftpick: | 6 (by the San Diego Chargers) |
| Draftyear: | 1965 |
| Draftround: | 1 |
| Draftpick: | 6 |
| High School: | Oscar F. Smith (South Norfolk, Virginia) |
| College: | Tennessee |
| Pastteams: |
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| Statlabel1: | Games played |
| Statvalue1: | 103 |
| Statlabel2: | Games started |
| Statvalue2: | 14 |
| Statlabel3: | Interceptions |
| Statvalue3: | 1 |
| Highlights: |
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| Collegehof: | 1899 |
Steven Cyril DeLong (July 3, 1943 – August 18, 2010) was an American professional football defensive lineman who played in the American Football League (AFL) and National Football League (NFL). He was a first round draft selection in both the AFL and NFL drafts in 1965.[1] [2] He played collegiately for the University of Tennessee, and professionally for the San Diego Chargers and Chicago Bears. In 1969 with San Diego, he set a team record with 17 sacks, a mark which stood until Gary Johnson had in 1980.[3] He was traded from the Chargers to the Bears on July 26, 1972, for a fourth-round selection in the 1973 NFL draft (84th overall - Jim Thaxton).[4] [5]
DeLong was inducted into the Virginia Sports Hall of Fame in 2000. He was the father of professional football player Keith DeLong, who also played for the University of Tennessee.