LTR

• Ltr. (for 'litre' or 'liter'), a unit of volume
• Letter (paper size)

• 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

• Left to right, a directionality of writing systems

• Little River railway station, Australia
• London Turkish Radio, an Internet radio station
• Long-term relationship

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

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