The National Audio Theatre Festivals, Inc. (NATF) is a US-based organization sponsoring a yearly, five-day workshop on radio drama, voice-over and the audio arts, as well as other special training. Participants take classes on subjects such as voiceover and voice acting, audio engineering, Foley and special effects, audio playwriting and podcasting, and more. The workshop is helmed by professionals in the field and is frequently held in the small city of West Plains, Missouri.
The last day of the festival is a live performance of audio drama, carried over local radio, as well as streamed live over the internet. The night's entertainment includes original radio plays performed by attendees, and a short workshop play written and produced by first-time conference participants.
Many participants of the National Audio Theatre Festivals' Audio Theatre Workshop have notable careers in the audio arts, such as Yuri Rasovsky, the members of the Firesign Theatre, and Tom Lopez (producer and founder of ZBS Foundation). Groups which frequently participate or support the NATF mission include the Atlanta Radio Theatre Company, Firesign Theatre, ZBS Foundation, the Willamette Radio Theatre, and many more.