LTR

LTR or similar may refer to: ==Measurement== Ltr. (for 'litre' or 'liter'), a unit of volume Letter (paper size)

==Science and technology== Learning to rank, ordering data with machine learning Left-to-right mark, a bidirectional control character Load task register, a machine-code instruction Logic Trunked Radio, a two-way radio system Long terminal repeat, a DNA sequence