LDT

LDT may stand for:


 * Laterodorsal tegmental nucleus, a nucleus in the brain stem
 * Laboratory developed test, in vitro diagnostics
 * Labordatentransfer, a German xDT format to transfer laboratory tests
 * Large deviations theory, field of probability theory
 * Learning Design and Technology, an academic program
 * Lexical decision task in psychology experiments
 * Lightning Data Transport, later HyperTransport computer bus
 * Local Descriptor Table, an x86 data structure
 * Telbivudine or LdT, a drug for hepatitis B
 * Computer file extension for EULUMDAT