Craterellus fallax is a species of "black trumpets" that occurs in Eastern North America.

Craterellus fallax is grayish to blackish, skinny and 3–12 centimetres (1–4+1⁄2 in) tall.

The inside is smooth and black when young, turning rough and gray with age.

[1] Craterellus fallax may be synonymous with the European species C. cornucopioides, which produces a white spore print.

[1] C. fallax is mycorrhizal, forming associations with Tsuga and Quercus species, among others.