| Abbreviation | Definition |
|---|---|
| LMBA | Larchmont Mamaroneck Basketball Association |
| LMBA | Lethbridge Minor Basketball Association |
| LMYB | Little Miami Youth Basketball |
| LNBC | Lake Norcentra Basketball Camps |
| LOBC | Lakewood Outdoor Basketball Committee |
| LUB | Liga Uruguaya de Basketball |
| LVBS | Lehigh Valley Basketball School |
| MAB | Mid American Basketball |
| MABA | Medway Amateur Basketball Association |
| MABC | Maine Association of Basketball Coaches |
| MABL | Manchester Area Basketball League |
| MABL | Marist Alumni Basketball League |
| MABO | Manitoba Association of Basketball Officials |
| MACABA | Mandaue City Amateur Basketball Association |
| MBA | Milford Basketball Association |
| MBBA | McFarland Boys Basketball Association |
| MBBA | Minnetonka Boys Basketball Association |
| MBCA | Massachusetts Basketball Coaches Association |
| MBCA | Minnesota Basketball Coaches Association |
| MBCA | Missouri Basketball Coaches Association |