may stand for:
- Discrete wavelet transform, a mathematical procedure in numerical analysis and functional analysis
- Deadweight tonnage, an expression of a ship's carrying capacity, including the weight of the crew, passengers, cargo, fuel, ballast, drinking water, and stores.
- Drowned World Tour, a successful 2001 concert tour by American singer Madonna.
Dwt may refer to:
- Pennyweight, an obsolete unit of mass
- Driving While Texting, operating a vehicle while typing or sending a text message on a mobile device.
.dwt is a file extension used by several programs, including: