The Star Wars audiobook library is a massive collection that spans two distinct continuities: (the current official timeline) and Legends (the pre-2014 Expanded Universe). While there are hundreds of audio productions, a "complete" collection often refers to the primary novels and audio dramas.
The number 116 is current as of the release of The High Republic: Tears of the Nameless (Fall 2024). It includes every Adult novel, Young Adult novel, and key Junior novel that has received the full "cinematic audio" treatment. This number grows by 4-6 titles per year, so die-hard completists must stay vigilant. the complete star wars audiobook series all 116