What is the name of a 13 faced 3d shape?

A 13-faced 3D shape is known as a triskaidecahedron. Specifically, if it has 13 faces that are all pentagons, it is referred to as a regular triskaidecahedron. In general, any polyhedron with 13 faces can be classified under this name, but the specific type can vary based on the shape and arrangement of the faces.