| California Oaks |
Thousand Oaks, California |
California Collegiate League |
amateur |
defunct |
| Conejo Oaks |
Thousand Oaks, California |
California Collegiate League |
amateur |
active |
| Dondero Oaks |
Royal Oak, Michigan |
|
high school |
defunct |
| Iowa Oaks |
Des Moines, Iowa |
American Association |
professional |
defunct |
| Menlo College Oaks |
Atherton, California |
|
college |
active |
| Midland Oaks |
Los Olivos, California |
|
high school |
active |
| Oak Hill Oaks |
Oak Hill, Ohio |
|
high school |
active |
| Oakfield Oaks |
Oakfield, Wisconsin |
|
high school |
active |
| Oakland Oaks |
Oakland, California |
Pacific Coast League |
professional |
defunct |
| Oakland Oaks |
Oakland, California |
American Basketball Association |
professional |
defunct |
| Oakland Oaks |
Oakland, California |
American Basketball League |
professional |
defunct |
| Oakland Oaks |
Oakland, California |
Pacific Coast Hockey League |
professional |
defunct |
| Oakland Oaks |
Oakland, Illinois |
|
high school |
active |
| Oakland/Kansas Oaks |
Oakland, Illinois |
|
high school |
active |
| Oaklandon Oaks |
Oaklandon, Indiana |
|
high school |
defunct |
| Oaktown Oaks |
Oaktown, Indiana |
|
high school |
defunct |
| Oakville Oaks |
Oakville, Ontario |
Intercounty Baseball League |
professional |
defunct |
| Oakville Oaks |
Oakville, Ontario |
Ontario Hockey Association |
professional |
defunct |
| Palo Alto Oaks |
Palo Alto, California |
Western Baseball Association |
|
active |
| Visalia Oaks |
Visalia, California |
California League |
professional |
defunct |
| Visalia Oaks |
Visalia, California |
California League |
professional |
defunct |