While most of these Disney short films are entirely traditionally animated, a few may have CGI or other elements incorporated into them, in which case they'll be listed both here and in the other appropriate category. (Unless I feel like listing them there would be a spoiler for the film.)

20th Century
Brave Little Tailor
Lonesome Ghosts
Mickey and the Seal
Mickey's Christmas Carol
Mickey's Trailer
The Old Mill
Pluto's Christmas Tree
The Skeleton Dance
Steamboat Willie
Trick or Treat
Vincent

21st Century
The Ballad of Nessie
Get a Horse!
How to Hook Up Your Home Theater
John Henry
The Little Matchgirl
Lorenzo
Paperman