| Augusta Nationals |
Augusta, Georgia |
Great South League |
amateur |
defunct |
| Branson Nationals |
Bolivar, Missouri |
M.I.N.K. League |
amateur |
active |
| Concord Nationals |
Concord, North Carolina |
North Carolina State League |
professional |
defunct |
| Concord Nationals |
Concord, North Carolina |
South Atlantic League |
professional |
defunct |
| Cornwall Nationals |
Cornwall, Ontario |
Federal Prospects Hockey League |
professional |
defunct |
| Dearborn Heights Nationals |
Dearborn Heights, Michigan |
North American Hockey League |
amateur |
defunct |
| Emporia Nationals |
Emporia, Virginia |
Virginia League |
professional |
defunct |
| Fairfax Nationals |
Vienna, Virginia |
Clark C. Griffith Collegiate League |
amateur |
defunct |
| FC Milwaukee Nationals |
Butler, Wisconsin |
Women's Premier Soccer League |
professional |
active |
| Fredericksburg Nationals |
Fredericksburg, Virginia |
Low-A East |
professional |
defunct |
| Fredericksburg Nationals |
Fredericksburg, Virginia |
Carolina League |
professional |
active |
| Germantown Nationals |
Philadelphia, Pennsylvania |
National Basket Ball League |
professional |
defunct |
| Glacier Nationals |
Whitefish, Montana |
American West Hockey League |
amateur |
defunct |
| Glacier Nationals |
Havre, Montana |
North American 3 Hockey League |
amateur |
defunct |
| Glacier Nationals |
Whitefish, Montana |
Northern Pacific Hockey League |
amateur |
active |
| Hamilton Nationals |
Hamilton, Ontario |
Major League Lacrosse |
professional |
defunct |
| Kitchener Nationals |
Kitchener, Ontario |
Eastern and Western Professional Lacrosse Association |
professional |
defunct |
| London Nationals |
London, Ontario |
Western Ontario Hockey League |
amateur |
defunct |
| London Nationals |
London, Ontario |
Greater Ontario Junior Hockey League |
amateur |
active |
| London Nationals |
London, Ontario |
Ontario Hockey Association |
professional |
defunct |
| Long Island Nationals |
New York, New York |
Atlantic Collegiate Baseball League |
amateur |
defunct |
| Michigan Nationals |
Dearborn, Michigan |
North American Hockey League |
amateur |
defunct |
| Minnesota Nationals |
Minneapolis, Minnesota |
United States Hockey League |
professional |
defunct |
| Montreal Nationals |
Montreal, Quebec |
Federal Amateur Hockey League |
professional |
defunct |
| Montreal Nationals |
Montreal, Quebec |
Canadian Hockey Association |
professional |
defunct |
| New York Nationals |
New York, New York |
American Soccer League |
professional |
defunct |
| Niagara Falls Nationals |
Niagara Falls, New York |
Federal Prospects Hockey League |
professional |
defunct |
| Niagara-on-the-Lake Nationals |
Niagara-on-the-Lake, Ontario |
Greater Metro Junior A Hockey League |
amateur |
defunct |
| Niagara-on-the-Lake Nationals |
Niagara-on-the-Lake, Ontario |
Canadian Premier Junior Hockey League |
amateur |
defunct |
| Orlando Nationals |
Orlando, Florida |
Florida East Coast League |
professional |
defunct |
| Ottawa Nationals |
Ottawa, Ontario |
Ontario Hockey Association |
professional |
defunct |
| Ottawa Nationals |
Ottawa, Ontario |
Border League |
professional |
defunct |
| Ottawa Nationals |
Ottawa, Ontario |
World Hockey Association |
professional |
defunct |
| Philadelphia Nationals |
Philadelphia, Pennsylvania |
American Soccer League |
professional |
defunct |
| Pontiac Nationals |
Pontiac, Michigan |
North American Basketball League |
professional |
defunct |
| Potomac Nationals |
Lynchburg, Virginia |
Carolina League |
professional |
defunct |
| Regina Nationals |
Regina, Saskatchewan |
Southern Baseball League |
amateur |
defunct |
| Rockland Nationals |
Rockland, Ontario |
Central Canada Hockey League |
amateur |
active |
| Saskatoon Nationals |
Saskatoon, Saskatchewan |
Western Major Baseball League |
amateur |
defunct |
| Shelby Nationals |
Shelby, North Carolina |
South Atlantic League |
professional |
defunct |
| Southern Maryland Nationals |
Hanover, Maryland |
Cal Ripken Collegiate Baseball League |
amateur |
defunct |
| Springfield Nationals |
Springfield, Massachusetts |
Eastern League |
professional |
defunct |
| Syracuse Nationals |
Syracuse, New York |
National Basketball Association |
professional |
defunct |
| Syracuse Nationals |
Syracuse, New York |
National Basketball League |
professional |
defunct |
| Toronto Nationals |
Toronto, Ontario |
Ontario Hockey Association |
professional |
defunct |
| Toronto Nationals |
Toronto, Ontario |
Major League Lacrosse |
professional |
defunct |
| Trenton Nationals |
Trenton, New Jersey |
National Basket Ball League |
professional |
defunct |
| Tucson Nationals |
Tucscon, Arizona |
Pacific Southwest Baseball League |
amateur |
active |
| U.S. Nationals |
St. Paul, Minnesota |
United States Hockey League |
professional |
defunct |
| Ukrainian Nationals |
Philadelphia, Pennsylvania |
American Soccer League |
professional |
defunct |
| Washington Nationals |
Washington, D.C. |
Major League Baseball |
professional |
defunct |
| Washington Nationals |
Washington, D.C. |
Eastern League |
professional |
defunct |
| Washington Nationals |
Washington, D.C. |
Major League Baseball |
professional |
active |
| Washington Nationals |
Washington, D.C. |
American Association |
professional |
defunct |
| Washington Nationals of Washington |
Washington, D.C. |
National Association of Base Ball Players |
professional |
active |
| Washington Nationals of Washington |
Washington, D.C. |
Union Association |
professional |
defunct |
| West Toronto Nationals |
West Toronto, Ontario |
Ontario Hockey Association |
professional |
defunct |