在几何学中，四面半六面体是一种凹多面体，属于星形多面体及均匀多面体，也可以归类在非凸均匀多面体，其索引为U₄。

• MathWorld上 Tetrahemihexahedron 的资料，作者：埃里克·韦斯坦因。

In geometry, the tetrahemihexahedron or hemicuboctahedron is a uniform star polyhedron, indexed as U₄. It has 6 vertices and 12 edges, and 7 faces: 4 triangular and 3 square. Its vertex figure is a crossed quadrilateral. Its Coxeter-Dynkin diagram is (although this is a double covering of the tetrahemihexahedron).