| Bill McArthur | |
| Birth Date: | 28 July 1918 |
| Birth Place: | Keokuk, Iowa, U.S. |
| Death Place: | Salem, Oregon, U.S. |
| Player Years1: | 1936–1939 |
| Player Team1: | UC Santa Barbara |
| Player Years2: | 1946 |
| Player Team2: | Chicago Rockets |
| Coach Years1: | 1946 |
| Coach Team1: | Gold Hill HS (OR) |
| Coach Years2: | 1947–1954 |
| Coach Team2: | Oregon College |
| Coach Years3: | 1956–1982 |
| Coach Team3: | Oregon College / Western Oregon |
| Coach Years4: | 1991 |
| Coach Team4: | Western Oregon |
| Overall Record: | 180–124–6 (college) |
| Bowl Record: | 2–0 |
| Tournament Record: | 0–2 (NAIA D-I playoffs) |
| Championships: | 10 OCC (1950–1954, 1958, 1966–1969) 6 Evergreen (1975–1980) |
William D. McArthur (July 28, 1918 – April 24, 1997) was an American football player and coach.[1] He served three stints as the head football coach at Western Oregon University, from 1947 to 1954, from 1956 to 1982, and in 1991, compiling a record of 180–124–6.[2] McArthur spent part of one off-season with the Chicago Rockets of the All-America Football Conference (AAFC) in 1946.[3]