DTR

DTR or similar may refer to:

Medicine

• Deep tendon reflex, of muscles
• Dietetic Technician, Registered, a clinical role in the United States

Technology

• Data Terminal Ready, in RS-232 modem communication
• Desktop replacement computer, a large laptop
• Digital Tape Recorder, aboard NASA's Voyager spacecraft

Other uses

• Deuteronomist (Dtr), hypothesised Torah author(s)
• Dorian Thompson-Robinson (born 1999), American football player
• Downtown Radio, a Northern Ireland radio station