电磁张量（electromagnetic tensor）或电磁场张量（electromagnetic field tensor）（有时也称作场强度张量（field strength tensor）、法拉第张量（Faraday tensor）或马克士威双矢量（Maxwell bivector））是一个描述一物理系统中电磁场的数学客体，所根据的是马克士威的电磁学理论。场张量是在赫尔曼·闵可夫斯基提出狭义相对论的四维张量形式之后被首次使用。

In electromagnetism, the electromagnetic tensor or electromagnetic field tensor (sometimes called the field strength tensor, Faraday tensor or Maxwell bivector) is a mathematical object that describes the electromagnetic field in space-time of a physical system. The field tensor was first used after the 4-dimensional tensor formulation of special relativity was introduced by Hermann Minkowski. The tensor allows some physical laws to be written in a very concise form.