RSR is a three letter acronym which may refer to:

• Radio Suisse Romande the Swiss French public service radio group
• Railway Safety Regulator, an agency of the South African government
• Retail Systems Research, a research company for the retail industry
• Former international license plate code for Southern Rhodesia
• Rock Structure Rating
• Rochester and Southern Railroad
• Romanian Socialist Republic or Republica Socialistă România, the name of Communist Romania from 1965 to 1989
• Ronald Suresh Roberts (born 1968), British West Indian biographer and columnist
• Rotary Scout Reservation, a Boy Scout camp in upstate New York
• RSR (spyplane), a Russian supersonic surveillance aircraft
• RSR ("RennSport Rennwagen"), race versions of the Porsche 911
• RSR (Ringsports Racing Assetto Corsa Community & Liga)

• Daschle
• Daschund
• Das (crater)
• Dascylus
• Dascălu, Ilfov
• DASD (disambiguation)
• Das Deutschlandlied
• Das EFX
• Dasein
• Das Erste
• Das Erste Deutsche Fernsehen
• Das Experiment
• Das falsche Buch
• Das Geduldige Fleisch
• Das glasperlenspiel
• Das Glasperlenspiel
• Dash-2
• Dash 2
• DASH 7
• Dash-7
• Dash 7
• DASH-7
• DASH-8
• Dash 8
• Dash 80