RDT may refer to:
Digital technology edit
- Real Data Transport, a proprietary data transport protocol
- Remote data transmission, the transmission of data between computers over a medium using a communications protocol
- Remote digital terminal, in telecommunications
- Reliable Data Transfer, in computer networking
Medicine edit
People edit
Organisations edit
Transport edit
- Radlett railway station (National Rail station code), England
- Richard Toll Airport (IATA code)