ASDF

ASDF may refer to:


 * asdfmovie, an animated sketch comedy series first distributed on YouTube
 * Advanced Scientific Data Format, a form of storing astronomical data
 * Air Self-Defense Force, in Japan
 * Alabama State Defense Force, a military entity
 * Alaska State Defense Force, a military entity
 * Another System Definition Facility, a build system for Common Lisp
 * ASDF, the sequence of letters from the left end of the home row on some keyboard layouts