GTD

GTD may refer to:
 * Gender, Technology and Development, a scientific journal
 * Geometric theory of diffraction
 * Gestational trophoblastic disease
 * Getting Things Done, a time management method and associated book by David Allen
 * Global Terrorism Database, maintained at University of Maryland
 * Volkswagen Golf Mk7, Grand Tour Diesel car
 * Gourinathdham railway station, in West Bengal, India
 * Grapevine trunk disease
 * Grand Tourer Daytona, a class in the WeatherTech SportsCar Championship.