在几何学以及晶体学中，布拉菲晶格（又译布拉菲点阵）只有14种可能。

常见的布拉菲晶格列于下表：

每一个单位晶格的体积可以由计算得知。其中,和是晶格矢量。各种布拉菲晶格的体积如下：

In geometry and crystallography, a Bravais lattice, studied by AugusteBravais (1850), is an infinite array of discrete points in three dimensional space generated by a set of discrete translation operations described by:

where n_i are any integers and a_i are known as the primitive vectors which lie in different directions and span the lattice. This discrete set of vectors must be closed under vector addition and subtraction. For any choice of position vector R, the lattice looks exactly the same.