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

Other uses

• Left to right, a directionality of writing systems
• Little River railway station, Australia
• London Turkish Radio, an Internet radio station
• Long-term relationship

See also

• "Left to Right", a short story by Isaac Asimov