A sender is an entity engaged in sending something. Sender may also refer to:
Sender (telephony), a circuit in an electromechanical telephone exchange sending telephone numbers and other information to another exchange the return address of a postal item the producer of a message in models of communication The Sender, a 1982 horror film Sender (film), a 2026 psychological thriller film
a broadcast radio Transmitter Sender (name), a given name and surname Sender (band), a rock band from Bendigo