The abbreviation DWI stands for:
- A Community institution of the German wine industry, see German Wine Institute
- An affiliated institute of the RWTH Aachen, the DWI - Leibniz Institute for Interactive Materials, formerly German Wool Research Institute
- German Scientific Institute, founded by the German Foreign Office during the 40s in "friendly", neutral or occupied countries.
- Diffusion- weighted imaging (English for diffusion - weighted imaging ), a measurement method in magnetic resonance imaging.