The 1973 Western Michigan Broncos football team represented Western Michigan University in the Mid-American Conference (MAC) during the 1973 NCAA Division I football season. In their 10th season under head coach Bill Doolittle, the Broncos compiled a 6–5 record (1–4 against MAC opponents), finished in a tie for fifth place in the MAC, and were outscored by their opponents, 218 to 190. The team played its home games at Waldo Stadium in Kalamazoo, Michigan.