Yumyum the Burglar is a Nopon in Xenoblade Chronicles 2. He is a burglar who steals from those he feels deserve it, and views Boreas as his rival, despite his frustration of Boreas rarely listening to what he says. He appears in various locations throughout Hero of the Nopon, and can be found at the Smùide Hot Spring in Alba Cavanich, Empire of Mor Ardain upon the quest's completion.
Yumyum is a Challenge Battle Enemy fought as a level 62 Nopon enemy during the wave 3 of the This Year's Heropon Challenge Battle, available as downloadable content from the Challenge Battle Mode Pack of the Expansion Pass. This enemy drops no items.
- In the Japanese dub, Yumyum is voiced by Shin-ichiro Miki, who would later voice Minoth in Torna ~ The Golden Country.