| Connie Zelencik | |
| Number: | 53 |
| Position: | Center |
| Birth Date: | 13 May 1955 |
| Birth Place: | Calumet City, Illinois, U.S. |
| Death Place: | Dyer, Indiana, U.S. |
| Height Ft: | 6 |
| Height In: | 4 |
| Weight Lbs: | 245 |
| High School: | Calumet City (IL) Thornton Fractional North |
| College: | Purdue |
| Draftyear: | 1977 |
| Draftround: | 11 |
| Draftpick: | 249 |
| Pastteams: |
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| Highlights: |
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| Statlabel1: | Games played |
| Statvalue1: | 14 |
| Pfr: | Z/ZeleCo20 |
Conrad James "Connie" Zelencik (May 13, 1955 – May 22, 2021) was an American professional football player who was a center for the Buffalo Bills of the National Football League (NFL) in 1977. He died on May 22, 2021, in Dyer, Indiana, at age 66.[1]