| Abbreviation | Definition |
|---|---|
| NWRA | North West Reining Association |
| NWSCC | NorthWest Ski Club Council |
| NWSM | New West Sports Medicine |
| NWT | National Walleye Tour |
| NWT | Not With Team |
| NWWL | Naked Women's Wrestling League |
| NXW | New Xtreme Wrestling |
| NYAC | New York Athletic Club |
| NYB | Noblesville Youth Baseball |
| NYCFC | New York City Football Club |
| NYCSL | New York City Soccer League |
| NYG | Next Years Game |
| NYG | North York Gators |
| NYH | New York Highlanders |
| NYHA | Needham Youth Hockey Association |
| NYK | New York Knickerbockers |
| NYM | New York Mets |
| NYO | Native Youth Olympics |
| NYP | New York Knickerbockers |
| NYR | New York Rangers |