DBA or dba may refer to:
The DBAG Class 225 are a set of related 4 axle diesel hydraulic locomotives from the DB V 160 family. The series does not represent a new build, but a reclassification and/or rebuilding of 1960s and 1970s locomotives of Class 215 and 218 units.
dBase (also stylized dBASE) was one of the first database management systems for microcomputers, and the most successful in its day.
The Class 648 is a two car, diesel multiple unit operated by the Deutsche Bahn for stopping regional rail services on unelectrified lines.
The Deutsche Bahn AG in Germany reserves classes 088, 188 and 288 for all historical motive power (locomotives, multiple-units, railcars and railbuses) that are no longer part of their active, commercial fleet, but are still in their inventory.
128 001, as registered at Deutsche Bahn, or 12X, as named by its manufacturer AEG Schienenfahrzeuge and its successive owners ADtranz and Bombardier Transportation, is an experimental high-performance electric locomotive built in 1994, which was operated as testbed and test locomotive until 2010. The design of the locomotive featured several technological innovations, including power electronics using new types of semiconductors and water cooling, a new final drive concept, a new bogie concept, and protruding windflaps for improved aerodynamics that gave the locomotive a unique look.
DBA (DBA Luftfahrtgesellschaft mbH, formerly branded as Deutsche BA) was a low-cost airline headquartered on the grounds of Munich Airport in a building within the municipality of Hallbergmoos, Germany.
The DBAG Class 145 and DBAG Class 146 are Bo'Bo' mainline electric locomotives built by Adtranz primarily for the Deutsche Bahn at the end of the 1990s.
dBASE Mac was a database management system for the Apple Macintosh, released by Ashton-Tate in 1987. Although the GUI was lauded in the press, the application was so slow that it became something of a joke in the industry.
The Class 430 EMU is an electric railcar for S-Bahn commuter networks in Germany, jointly developed by Bombardier and Alstom.