| William Rosado | |
| Full Name: | William John Rosado |
| Nickname: | "Billy" |
| Sport: | Wrestling |
| Event: | Freestyle |
| Country: | United States |
| Team: | USA |
| Collegeteam: | Arizona State |
| Club: | Sunkist Kids Wrestling Club |
| Birth Date: | 23 October 1955 |
| Birth Place: | Wiltshire, England |
| Hometown: | Tucson, Arizona, U.S. |
| Show-Medals: | yes |
William John "Billy" Rosado (born October 23, 1955) is an American wrestler. He competed in the men's freestyle 48 kg at the 1976 Summer Olympics.[1] He also was a bronze medalist at the 1981 World Wrestling Championships.