LDA may stand for:*Landing Distance Available, see Runway#Declared distancesLaser Doppler Anemometry (velocimetry) Latent Dirichlet allocation, in statisticsLeft displaced abomasumLegal drinking ageLegal document assistantLiga Deportiva Alajuelense, a Costa Rican football clubLinear diode array Linear discriminant analysis, in statisticsLithium diethylamideLithium diisopropylamideLiving donor allograftLoaD Accumulator, an opcode from the MOS Technology 6502 instruction setLocal-density approxima… (More on Lda)