Acronyms, Abbreviations, and Initialisms

The WorldWideWeb Acronym and Abbreviation Server

(University College, Cork)

Opaui Guide to Lists of Acronyms, Abbreviations, and Initialisms on the Web

General lists and specific subject lists

Acronym Finder

Contains over 4 million acronyms, abbreviations, and initialisms

Abbreviations and Acronyms used by the Federal Government

Provided by USA.gov

DOD Dictionary of Military Terms

see also Military Information

see also University of Maryland Reference Room Dictionaries