Every Houndoom card we price, most valuable first. Prices are what copies actually sold for, updated daily.
The same Pokemon is also printed as Dark Houndoom, priced separately because the game treats them as different cards.
What a Houndoom card is worth
The most valuable Houndoom on this list is Houndoom (H11) from Skyridge at $475.74£358.06€418.97, and the 41 priced copies across 29 sets are worth $3.0k£2.2k€2.6k together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.
Houndoom is printed in Japanese as well: 33 cards across 24 sets, the most valuable of them Houndoom from Tyranitar Constructed Standard Deck at $699.99£526.85€616.46. Switch the list above to Japanese to read those, or to Both to rank the two catalogues against each other.
The highest PSA 10 on record for Houndoom sold for $25,677£19,326€22,613. 1st Edition and reverse holo printings are priced separately from the standard card, because they do not trade at the same money. Rarities here include Illustration Rare, Secret Rare.
If you are trying to identify which Houndoom you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: Skyridge, Neo Revelation, Aquapolis.