K9 Cannons are enemies that appear in Wario: Master of Disguise.
K9 Cannons appear to be a type of cannon in the shape of a Noobis that can be only found in Poobah the Pharaoh's Pyramid. They act as sentries where they will shoot energy balls at any intruder. Wario cannot defeat them in battle and they must be avoided.
- Their name is a pun on the word canine considering they resemble dogs.