PIK
| Acronym | Definition |
|---|---|
| PIK | Potsdam Institute for Climate Impact Research |
| PIK | Payment in Kind |
| PIK | Potsdam Institut fur Klimafolgenforschung (German: Potsdam Institute for Climate Impact Research) |
| PIK | Paid In Kind |
| PIK | Pomorza I Kujaw (Polish radio station) |
| PIK | Personal Identification Key |
| PIK | Percentage of Innocent Mail Killed |
| PIK | Product Introduction Key |
| PIK | Primary Issuer Key |
| PIK | Plug-in Kit |
| PIK | Glasgow, Scotland, United Kingdom - Prestwick (Airport Code) |
| PIK | Platform Integration Kit |
| PIK | Per Inge Kvindesland (Norwegian poet) |