ASDF

ASDF may refer to:

Military Air Self-Defense Force, in Japan Alabama State Defense Force, a military entity Alaska State Defense Force, a military entity

Technology Advanced Scientific Data Format, a form of storing astronomical data Another System Definition Facility, a build system for Common Lisp ASDF, the sequence of letters from the left end of the home row on certain keyboard layouts

See also asdfmovie, an animated sketch comedy series on YouTube