A hyperbolic dodecahedron is a hyperbolic version of the Euclidean dodecahedron.
Hyperbolic space in three dimensions can be tessellated with hyperbolic dodecahedra whose intermediate dihedral
angles are 60, 72, or .
A decorated hyperbolic dodecahedron has been used as the logo for Mathematica since Version 2. Trott (2004, §8.3.10) gives a heuristic reconstruction of the
cover image and explicitly notes that his construction is not a genuine hyperbolic
dodecahedron.