RR to RUC

RR	Royal Regiment
RRC	Royal Red Cross
RRF	Royal Regiment of Fusiliers
RRW	Royal Regiment of Wales
RSA	Royal Scottish Academician; Royal Society of Arts
RSAA	Royal Society for Asian Affairs
RSAC	Royal Scottish Automobile Club
RSAMD	(Diploma of) Royal Scottish Academy of Music and Drama
RSBA	Royal Society of British Artists
RSBS	Royal Society of British Sculptors
RSC	Royal Shakespeare Company; Royal Society of Canada; Royal
RSCM	Royal Society of Church Music
RSCN	Registered Sick Children's Nurse
RSE	Royal Society of Edinburgh
RSF	Royal Scots Fusiliers
RSGS	Royal Scottish Geographical Society
RSL	Royal Society of Literature; Returned Services League (Australia)
RSM	Royal Society of Medicine; Royal Society of Music; Regimental
RSMA	Royal Society of Marine Artists
RSME	Royal School of Military Engineers
RSNC	Royal Society for Nature Conservation
RSPB	Royal Society for the Protection of Birds
RSPCA	Royal Society for the Prevention of Cruelty to Animals
RSPP	Royal Society of Portrait Painters
RSRE	Royal Signals and Radar Establishment
RSS	Royal Statistical Society
RSSA	Royal Scottish Society of Arts
RSSPCC	Royal Scottish Society for the Prevention of Cruelty to Children
RSW	Member of Scottish Royal Society of Painters in Water Colours
Rt Hon	Right Honourable
Rt Rev	Right Reverend
Rt	Right
RTC	Royal Tank Corps
RTE	Radio Telefis Eireann
RTO	Railway Transport Officer
RTPI	Royal Town Planning Institute
RTR	Royal Tank Regiment
RTS	Royal Television Society
RUA	Royal Ulster Academy
RUC	Royal Ulster Constabulary

Debrett's