LCR may refer to: Science and technology LCR circuit, an inductor, capacitor and resistor electrical circuit LCR meter, for measuring inductance, capacitance and resistance Least-cost routing, the process of selecting the path of outbound communications traffic based on cost Left/Center/Right, a speaker designation type used in surround sound Line Concentration Ratio, in telephony; see Number Five Crossbar Switching System Low Chip Rate, one of the two transmission modes of UMTS-TDD 3G standard 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 Organizations Lake County Railroad, a railroad company based in Lakeview, Oregon, US LifeWay Christian Resources, a Christian publisher in Nashville, TN, US Revolutionary Communist League (France) (), a former political party in France Revolutionary Communist League (Belgium) (), a political party in Belgium Lutheran Churches of the Reformation Log Cabin Republicans, an LGBT organization that supports the US Republican Party London and Continental Railways, a property development company owned by the UK Government, originally established to build the Channel Tunnel Rail Link Louis Christen Racing, a company that manufactures sidecar road racing chassis LCR Team, a motorcycle team currently competing in MotoGP Other uses Landing Craft Rubber, an inflatable rubber boat used to carry troops 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 Liverpool City Region, a region of northwest England Loughborough Campus Radio Ruger LCR, a revolver made by the Ruger company Boten–Vientiane railway, formally known as Laos-China Railway See also Landing Craft Rubber Large (CRL or LCR (L))