PNG

PNG stands for:

Personennahverkehrsgesellschaft Bad Salzungen mbH, a former transport company in Thuringia
Papua New Guinea , ISO-3166-1 code as well as the license plate
Partidul Noua Generație - Creştin Democrat , a party in Romania
Persona non grata (synonym: Persona ingrata ; Latin for “unwanted person”), a diplomat against whom the receiving state objects
Portable Network Graphics , a graphics format (.png)
Professional Numismatists Guild , an association of American coin dealers
Care Reorientation Act , a law to reform statutory long-term care insurance in Germany

png stands for: