Every Muk card we price, most valuable first. Prices are what copies actually sold for, updated daily.
The same Pokemon is also printed as Alolan Muk and Muk & Alolan Muk, priced separately because the game treats them as different cards.
What a Muk card is worth
The most valuable Muk on this list is Muk (H17) from Aquapolis at $256.33£192.93€225.74, and the 18 priced copies across 16 sets are worth $690£519€608 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.
Muk is printed in Japanese as well: 17 cards across 14 sets, the most valuable of them Muk from The Town on No Map at $149.99£112.89€132.09. 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 Muk sold for $2,640£1,987€2,325. 1st Edition and reverse holo printings are priced separately from the standard card, because they do not trade at the same money.
If you are trying to identify which Muk 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: Aquapolis, EX Dragon, Legendary Collection.