| Bob Breitenstein | |
| Birth Date: | 24 July 1913 |
| Birth Place: | Cincinnati, Ohio, U.S. |
| Death Place: | Boone, North Carolina, U.S. |
| Player Years1: | 1935–1936 |
| Player Team1: | Miami (OH) |
| Player Positions: | Halfback |
| Coach Years1: | 1946–1948 |
| Coach Team1: | Shaker Heights HS (OH) |
| Coach Years2: | 1949–1955 |
| Coach Team2: | Miami (FL) (backfield) |
| Coach Years3: | 1957–1958 |
| Coach Team3: | Appalachian State (assistant) |
| Coach Years4: | 1959 |
| Coach Team4: | Appalachian State |
| Coach Years5: | 1960–1963 |
| Coach Team5: | Appalachian State (assistant) |
| Overall Record: | 6–4 (college) |
Robert Logan Breitenstein (July 24, 1913 – March 28, 2002) was an American football player and coach. He served as the head football coach at Appalachian State Teachers College—now known as Appalachian State University—for one season in 1959, compiling a record of 6–4.[1]
Breitenstein was a native of Cincinnati, Ohio. He attended Miami University in Oxford, Ohio, where he played college football as a halfback.[2] Breitenstein coached high school football at Shaker Heights High School in Shaker Heights, Ohio. He resigned as head football coach there in 1949 to take a job as backfield coach under Andy Gustafson at the University of Miami in Coral Gables, Florida.[3] In Miami, he coached quarterback George Mira and fullback Don Bosseler. Breitenstein died in 2002.