| Abbreviation | Definition |
|---|---|
| LSC | Local Swim Club |
| LSC | Local Swim Conference |
| LSC | Local Swimming Committee |
| LSC | Local Swimming Community |
| LSO | Lansing Swim Organization |
| LTS | Learn To Swim |
| LVST | Lucas Valley Swim Team |
| MBST | Myrtle Beach Swim Team |
| MCSL | Montgomery County Swim League |
| MCST | Martinez Community Swim Team |
| MDSA | Minnewaska Distance Swimmers Association |
| MFSA | Mark Foster Swimming Academy |
| MISCA | Michigan Interscholastic Swim Coaches Association |
| MMST | Milton Marlins Swim Team |
| MOWS | Masters Open Water Swimming |
| MPS | More Public Snorkling |
| MPST | Mountain Park Swim Team |
| MSQ | Masters Swimming QLD |
| MSQ | Masters Swimming Queensland |
| MSST | Midnight Sun Swim Team |