| Roy K. Thomas | |
| Birth Date: | 16 June 1887 |
| Birth Place: | Lime Lake, Leelanau County, Michigan, U.S. |
| Death Place: | Traverse City, Michigan, U.S. |
| Alma Mater: | Olivet College (B.A., 1909) |
| Player Sport1: | Football |
| Player Years2: | 1905–1908 |
| Player Team2: | Olivet |
| Player Sport3: | Basketball |
| Player Years4: | 1905–1908 |
| Player Team4: | Olivet |
| Player Positions: | Halfback (football) |
| Coach Sport1: | Football |
| Coach Years2: | 1909–1911 |
| Coach Team2: | Fairmount |
| Coach Years3: | 1913 |
| Coach Team3: | Ohio Wesleyan |
| Coach Sport4: | Basketball |
| Coach Years5: | 1909–1912 |
| Coach Team5: | Fairmount |
| Coach Sport6: | Baseball |
| Coach Years7: | 1909–1912 |
| Coach Team7: | Fairmount |
| Overall Record: | 17–15–2 |
| Awards: | Olivet College Athletic Hall of Fame (1972) |
Roy Kehl Thomas (June 16, 1887 – May 23, 1977) was an American football, basketball, and baseball coach. He was the seventh head football coach at Fairmount College—now known as Wichita State University—located in Wichita, Kansas and he held that position for three seasons, from 1909 until 1911. His record at Fairmount was 15–8–2.[1] The 1911 team finished the season with a record of 7–1. They were declared the Kansas Collegiate Athletic Conference champions.[2] Thomas coached the football team at Ohio Wesleyan University in 1913.[3]
Thomas died at Traverse City, Michigan in 1977 after a long illness.[4]