The Black Deer Puffle is a Puffle Creature. It is available from the Puffle Wild app for iOS devices. It can be adopted after destroying all 18 snow tiles on the bonus level after cleaning level 16 of Wild Woods. It could also be adopted during the Puffle Party 2015. It was briefly mentioned in Issue #494 of the Club Penguin Times. "The black deer will always help you find your way."
It is one of four deer puffles, the others being blue, red, and purple.