TTY

TTY may refer to:

Communications and technology

 * Teleprinter or teletypewriter (TTY), an electromechanical typewriter paired with a communication channel
 * Sometimes used more generally for any type of computer terminal
 * May also be used to refer to a virtual console in Unix-like operating systems
 * Another name for a telecommunications device for the deaf (TDD), a teleprinter designed for persons with hearing or speech difficulties
 * tty (Unix), a command found in Unix-like operating systems

Other uses

 * Tampere University of Technology (Tampereen Teknillinen Yliopisto), in Finland
 * Torque-to-yield fastener