A few of these were nominated and won an Academy Award or Emmy in the short categories (see notes). See anything I should add or delete? Hit me up in the comments.
"Shorts" are anything under 70 minutes right now and free to watch with Amazon Prime. This also includes stand-up and it looks like I'm expanding this to include TV specials/movies since I'm limited from how much I can add to my noteworthy films on Amazon Prime list due to me not having LB's iPhone app, which doesn't have the bug that deletes titles on lists greater than 3,329. I have a separate list of miniseries worth checking out on Prime, and I track what's leaving the service every month.
Not on Letterboxd: A Severe Test (Alice Guy short), a shorts compilation called Crazy Creatures with accredited directors Mercedes Marro, Nils Skapāns, Jesús Pérez, Gerd Gockell, and Ted Sieger