CNG can mean:*Compressed natural gas, for example, CNG vehiclesCypriot National Guard, the combined arms force of the Republic of CyprusChinese National Geography, magazine published in ChinaComfort Noise Generator used in Speech Codecs to insert artificial noise during silent intervals of speech.Conseil National de Gouvernement, provisional government of Haiti from 1986 to 1988Cyclic nucleotide-gated ion channel an ion channel gated by cyclic nuclotide like cAMPCertified Naturally Grown a certi… (More on Cng)