| Albuquerque Dukes |
Albuquerque, New Mexico |
Western League |
professional |
defunct |
| Albuquerque Dukes |
Albuquerque, New Mexico |
Sophomore League |
professional |
defunct |
| Albuquerque Dukes |
Albuquerque, New Mexico |
Texas League |
professional |
defunct |
| Albuquerque Dukes |
Albuquerque, New Mexico |
West Texas-New Mexico League |
professional |
defunct |
| Albuquerque Dukes |
Albuquerque, New Mexico |
Pacific Coast League |
professional |
defunct |
| Albuquerque Dukes |
Albuquerque, New Mexico |
Rio Grande Association |
professional |
defunct |
| Alexandria Dukes |
Alexandria, Virginia |
Carolina League |
professional |
defunct |
| Allentown Dukes |
Allentown, Pennsylvania |
Eastern League |
professional |
defunct |
| Allentown Dukes |
Allentown, Pennsylvania |
Inter-State League |
professional |
defunct |
| Berkshire Dukes |
Hinsdale, Massachusetts |
New England Collegiate Baseball League |
amateur |
defunct |
| Cumberland County College Dukes |
Vineland, New Jersey |
|
college |
active |
| Cumberland Dukes |
Cumberland, Maryland |
All-American Professional Basketball League |
professional |
defunct |
| Cumberland Dukes |
Cumberland, Virginia |
|
high school |
active |
| Detroit Dukes |
Detroit, Michigan |
International Boxing League |
professional |
defunct |
| Dixon Dukes |
Dixon, Illinois |
|
high school |
active |
| Dukes |
Portland, Oregon |
West Coast League Portland |
amateur |
active |
| Dukes of Hamilton |
Hamilton, Ontario |
Ontario Hockey League |
amateur |
defunct |
| Duluth Dukes |
Duluth, Minnesota |
Twin Ports League |
professional |
defunct |
| Duluth Dukes |
Duluth, Minnesota |
Northern League |
professional |
defunct |
| Duluth-Superior Dukes |
Duluth, Minnesota |
Northern League |
professional |
defunct |
| Duquesne Dukes |
Duquesne, Pennsylvania |
|
high school |
active |
| Duquesne University Dukes |
Pittsburgh, Pennsylvania |
|
college |
active |
| Garber Dukes |
Essexville, Michigan |
|
high school |
active |
| Gloucester Dukes |
Gloucester, Virginia |
|
high school |
active |
| James Madison University Dukes |
Harrisonburg, Virginia |
|
college |
active |
| Lansdale Dukes |
Lansdale, Pennsylvania |
North Atlantic League |
professional |
defunct |
| Marlington Dukes |
Alliance, Ohio |
|
high school |
active |
| Pittsfield Dukes |
Pittsfield, Massachusetts |
New England Collegiate Baseball League |
amateur |
defunct |
| Rowan College South Jersey - Cumberland Dukes |
Vineland, New Jersey |
|
college |
active |
| San Jose Dukes |
San Jose, California |
California League |
professional |
defunct |
| Santa Fe Dukes |
Santa Fe, New Mexico |
Women's Football Alliance |
professional |
active |
| Sherwood Park Dukes |
Sherwood Park, Alberta |
Western Major Baseball League |
amateur |
defunct |
| Slatington Dukes |
Slatington, Pennsylvania |
Inter-State League |
professional |
defunct |
| Tamaqua Dukes |
Tamaqua, Pennsylvania |
Inter-State League |
professional |
defunct |
| Wellington Dukes |
Wellington, Ontario |
Ontario Junior Hockey League |
amateur |
active |
| Wellington Dukes |
Wellington, Illinois |
|
high school |
defunct |
| Wellington Dukes |
Wellington, Kansas |
Kansas State League |
professional |
defunct |
| Wellington Dukes |
Wellington, Ohio |
|
high school |
active |
| Windsor Dukes |
Windsor, Virginia |
|
high school |
active |
| York Dukes |
York, Nebraska |
Nebraska State League |
professional |
defunct |
| York Dukes |
Elmhurst, Illinois |
|
high school |
active |
| York Dukes |
York, Nebraska |
|
high school |
active |
| York Township Dukes |
York Township, Ohio |
|
high school |
defunct |