| Abbreviation | Definition |
|---|---|
| NAIA | Narcotics Allowed In Athletics |
| NAIA | National Association of Ineligible Athletes |
| NAIOU | Narcotics Anonymous I Owe U |
| NAIOU | Never Approach Irradiated Operational Units |
| NAM | Need A Medic |
| NAMBLA | North American Marlon Brando Look Alikes |
| NAMM | Not Another Male Meeting |
| NAMO | New Acronym Manufacturing Obsession |
| NAMYA | Nice, Alturisim, Mirth,Yes, Aware |
| NANO | Need A Night Out |
| NAPA | Need Another Part ASAP (As Soon As Possible) |
| NAPA | Never Ask Phil Anything |
| NAPA | No Apparent Professionals Anywhere |
| NAPA | No Atlanta Petitions Accepted |
| NAPA | Not A Pocono Achiever |
| NAPA | Not Any Parts Available |
| NARF | Nutcase Alliances Raping Fanfiction |
| NAS | Never Any Service |
| NASA | National Acronym Slinging Agency |
| NASA | National Anal Sex Association |