PKN
| Acronym | Definition |
|---|---|
| PKN | Polski Koncern Naftowy (Polish: Polish Oil Concern) |
| PKN | Pecha Kucha Night (various locations; designer showcase event) |
| PKN | Polish Committee for Standardization |
| PKN | Protestantse Kerk Van Nederland (Dutch church) |
| PKN | Parti Keadilan Nasional (Malay: People's Justice Party) |
| PKN | Program Khidmat Negara (Malaysian national service program; aka Program Latihan Khidmat Negara; also seen as PLKN) |