GRN may refer to:
Broadcasting Global Radio News, a journalism organization Government Radio Network (Australia) Guadalupe Radio Network Swedish Broadcasting Commission (Swedish: )
Transport Greensborough railway station, in Victoria, Australia Greenville and Northern Railway, a defunct American railroad Grindleford railway station, in England
Other uses An initialism for the Australian Greens political party Gene regulatory network Global Recordings Network, US Christian network Goods Received Note Granulin Grenada, IOC and UNDP country code Guarani dialects, ISO-639 code