Robert Hayes

Robert or Bob Hayes may refer to:


 * Bob Hayes (1942–2002), Olympic gold-medal sprinter and receiver for the Dallas Cowboys
 * Robert Hayes (legal scholar) (1942–2011), Australian law scholar
 * Robert M. Hayes (information scientist) (born 1926), American academic
 * Robert Hayes (seismologist) (1900–1977), New Zealand astronomer, seismologist and organist
 * Robert E. Hayes Jr. (born 1947), American bishop of the United Methodist Church
 * Robert W. Hayes Jr. (born 1952), Republican member of the South Carolina Senate
 * Robin Hayes (Robert Cannon Hayes, born 1945), politician from North Carolina
 * Robert Seth Hayes, member of the Black Liberation Army
 * Robert H. Hayes, American professor of business administration
 * Robert M. Hayes (lawyer) (born 1952), American attorney, founder of the Coalition for the Homeless
 * Robert Hayes (serial killer) (born 1982), American serial killer
 * Robert Benjamin Hayes, (born 1876), American educator