| Madison Mad Dogs |
Madison, Wisconsin |
Indoor Football League |
professional |
defunct |
| Madison Mad Dogs |
Madison, Wisconsin |
Indoor Professional Football League |
professional |
defunct |
| Massachusetts Mad Dogs |
Lynn, Massachusetts |
Northeast League |
professional |
defunct |
| Massachusetts Mad Dogs |
Lynn, Massachusetts |
North Atlantic League |
professional |
defunct |
| Memphis Mad Dogs |
Memphis, Tennessee |
Canadian Football League |
professional |
defunct |
| Washington Mad Dogs |
Washington, D.C. |
Major League Roller Hockey |
professional |
defunct |