Cirsium funkiae, the funky thistle or Funk's thistle, is a species of thistle found in the United States. It was first described by American botanist Jennifer Ackerfield in 2022.

The funky thistle's common name refers to the plant's "funky" appearance, with a nodding woolly flower head, and additionally honors Ackerfield's mentor Vicki Funk, who was also described as funky. The funky thistle can be differentiated from the similar looking mountain thistle Cirsium scopulorum by the coloration of the style branches and corolla, and the nodding flowerhead that the funky thistle exhibits.

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