RN - Royal Navy R.N. - Royal Navy YRN - Yrk Royal Navy RNS - Royal Navy Ships RNP - Royal Navy Police FRN - Future Royal Navy RRN - Reigen Royal Navy RNO - Royal Navy of Oman RRN - Redonda Royal Navy RNH - Royal Navy Hospital IRN - Imperial Royal Navy URNU - Unit Royal Navy Unit RNAR - Royal Navy and Royal RNRU - Royal Navy Rugby Union RNAS - Royal Navy Air Service RNA - Royal Navy Association RNRC - Royal Navy Rowing Club RNSH - Royal Navy Sub Harpoon RNUR - Royal Navy Unit Review RNWW - Royal Navy Wet Weather RNFT - Royal Navy Fitness Test RNCC - Royal Navy Cricket Club RNVU - Royal Navy Vetting Unit RNCG - Royal Navy Covers Group RNSD - Royal Navy Stores Depot RNTT - Royal Navy Training Team HMRN - Her Majesty's Royal Navy RNAR - Royal Navy Amateur Radio RNAS - Royal Navy and the Slave RNAY - Royal Navy Aircraft Yard RNSB - Royal Navy Section Belge RNSD - Royal Navy Storage Depot RNSQ - Royal Navy Sick Quarters RNTR - Royal Navy Torpedo Range RNOV - Royal Navy of Oman Vessel RNAD - Royal Navy Armament Depot RNLO - Royal Navy Liaison Office RNBH - Royal Navy Battle Honours RNRM - Royal Navy & Royal Marine RNHF - Royal Navy Historic Flight RNCS - Royal Navy Cyprus Squadron URNU - University Royal Navy Unit RNCF - Royal Navy Cordite Factory RNLO - Royal Navy Liaison Officer RNML - Royal Navy Mobile Learning RNMS - Royal Navy Medical Service RNRM - Royal Navy & Royal Marines WRNS - Women's Royal Navy Service BRNC - British Royal Navy College RNAC - Royal Navy Automobile Club
