NDT may refer to: National Debate Tournament, a national championship of intercollegiate policy debate Ndunga language, represented by ISO 639 code Nederlands Dans Theater Neolithic discontinuity theory Neil deGrasse Tyson (born 1958), American astrophysicist Neue Deutsche Todeskunst, a music genre Neurodevelopmental treatment Newfoundland Daylight Time Nil ductility temperature, the temperature at which brittle fracture in a normally ductile material becomes 100 percent cleavage Nondestructive testing, a type of testing which does not damage or destroy the original object Noriko's Dinner Table (2006), a Japanese film by Sono Sion Normal distributions transform, a point cloud registration algorithm Nephrology Dialysis Transplantation, a medical nephrology journal