William Arthur Reilly | |
|---|---|
 | |
| Deputy Mayor of Boston | |
| In office 1957–1960 | |
| Preceded by | John A. Breen |
| Succeeded by | John P. McMorrow |
| Boston Traffic Commissioner | |
| In office 1950–1957 | |
| Preceded by | Leo Curley |
| Succeeded by | Joe O'Connor |
| Boston Fire Commissioner | |
| In office 1938–1945 | |
| Preceded by | Edward F. McLaughlin |
| Succeeded by | John I. Fitzgerald |
| Personal details | |
| Born | March 6, 1903 Roxbury |
| Died | April 3, 1969 (aged 66) Dorchester |
| Nationality | American |
| Political party | Democratic |
William Arthur Reilly (March 6, 1903 – April 3, 1969) was an American political figure from Boston who served as the city's deputy mayor and fire commissioner and was member of the school committee and finance commission.