FLK
| Acronym | Definition |
|---|---|
| FLK | Falkland Islands (Islas Malvinas, ISO Country code) |
| FLK | Funny Looking Kid |
| FLK | Folger Levin & Kahn LLP (San Francisco, CA) |
| FLK | Fentanyl Lidocaine Ketamine |
| FLK | Fetal Lamb Kidney |
| FLK | Flanker (wide receiver in football) |
| FLK | Fathom-Lord Karathress (World of Warcraft boss) |