| Abbreviation | Definition |
|---|---|
| NLG | National Lawyers Guild |
| NLG | New Legacy Guild |
| NMFG | New Mexico Faceters Guild |
| NNG | The Network Needlearts Guild |
| NOM | Nation Of Men |
| NOPG | Northwest Oil Painters Guild |
| NRG | National Research Guild |
| NRG | Nautical Research Guild |
| NSAG | North Shore Artists' Guild |
| NTGM | Needlework and Textile Guild of Michigan |
| NWAG | Northern Westchester Artists Guild |
| OACG | Ohio Arts and Crafts Guild |
| OBG | Oregon Bartenders Guild |
| OCBG | Omaha Craft Bartenders Guild |
| OCG | Owen Cheese Guild |
| ODG | Oxford Diocesan Guild |
| OGG | Online Gamers Guild |
| OGG | Oregon Glass Guild |
| OPDAG | Original Paper Doll Artists Guild |
| OPDAG | Original Paper Doll Artists Guild (Kingfield, ME) |