Osun is a character who appears in the Majora's Mask manga by Akira Himekawa. He makes an appearance prior to when Link meets Skull Kid. Link makes a stop at a building with attributes similar to a castle, where he is supposed to give out lessons to a group of soldiers. Osun has the grade of a master and is more calm and less naive than the other ones. Link manages to defeat all of the soldiers during practice, while it doesn't get specified whether he defeats Osun or not.
One of his apprentices is named Vicente, who is the most stubborn and temperamental of the soldiers.
- Osun greatly resembles Link's Uncle.