LCR may refer to:
Businesses and organizations Government and political Log Cabin Republicans, an LGBT group that supports the US Republican Party London and Continental Railways, a UK-government-owned property developer Revolutionary Communist League (France) (), a former political party in France Revolutionary Communist League (Belgium) (), a political party in Belgium Liverpool City Region Combined Authority, a local authority in the northwest of England
Motor racing Louis Christen Racing, a manufacturer of sidecar road racing chasses LCR Team, a motorcycle team currently competing in MotoGP
Religious LifeWay Christian Resources, a Christian publisher in Nashville, TN, US Lutheran Churches of the Reformation
Military and weapons Landing Craft Rubber, an inflatable rubber boat for troops Landing Craft Rubber Large (LCR(L)), in WWII Ruger LCR, a 2009 revolver
Places Lake County Railroad, Oregon, United States Laos–China Railway or Boten–Vientiane railway, Lao Liverpool City Region, northwest England
Science and technology Electrical engineering LCR circuit, an inductor, capacitor and resistor electrical circuit LCR meter, for measuring inductance, capacitance and resistance Left/Center/Right, a speaker designation type used in surround sound
Molecular biology Leucocyanidin reductase, an enzyme in the leucocyanidin biosynthesis pathway Ligase chain reaction, a method for DNA amplification similar to the polymerase chain reaction Locus control region, in epigenetics Low copy repeats, in molecular genetics
Telecommunications Line Concentration Ratio; see Number Five Crossbar Switching System Low Chip Rate, one of the two transmission modes of UMTS-TDD 3G standard Least-cost routing, outbound traffic triaging based on cost
Other uses Lead and Copper Rule, a regulation issued under the US Safe Drinking Water Act Liquidity Coverage Ratio, a global minimum liquidity standard that is part of Basel III Local content requirements, industrial policy to protect local production Loughborough Campus Radio