ATD may refer to:
Atdhe Nuhiu (born 29 July 1989) is an Austrian footballer of Albanian descent who plays as a striker for Sheffield Wednesday.
Atdash is a town in the Gegharkunik Province of Armenia.
At the Drive-In is an American post-hardcore band from El Paso, Texas, formed in 1993. The band currently consists of Cedric Bixler (vocals), Omar Rodríguez (guitar, vocals), Paul Hinojos (bass), Tony Hajjar (drums) and Keeley Davis (guitar, vocals).
Enochian angels are entities described in the Enochian magic system, introduced in the sixteenth century by John Dee (1527–1608) and Edward Kelly (1555–1597).
The Hayes command set is a specific command language originally developed by Dennis Hayes for the Hayes Smartmodem 300 baud modem in 1981.
ATDMT is a tracking cookie served by Facebook subsidiary Atlas Solutions and used as a third-party cookie by several websites.
The Mitsubishi X-2 Shinshin (formerly the ATD-X) is a Japanese experimental aircraft for testing advanced stealth fighter aircraft technologies.
Acceptance test–driven development (ATDD) is a development methodology based on communication between the business customers, the developers, and the testers.
An autosome is a chromosome that is not an allosome (a sex chromosome). Autosomes appear in pairs whose members have the same form but differ from other pairs in a diploid cell, whereas members of an allosome pair may differ from one another and thereby determine sex.