高斯定律（Gauss' law）表明在闭合曲面内的电荷分布与产生的电场之间的关系：

此方程是卡尔·高斯在1835年提出的，但直到1867年才发布。高斯定律在静电场情况下类比于应用在磁场学的安培定律，而二者都被集中在麦克斯韦方程组中。因为数学上的相似性，高斯定律也可以应用于其它由反平方定律决定的物理量，例如引力或者辐照度。参看散度定理。

In physics, Gauss's law, also known as Gauss's flux theorem, is a law relating the distribution of electric charge to the resulting electric field.

The law was formulated by Carl Friedrich Gauss in 1835, but was not published until 1867. It is one of Maxwell's four equations, which form the basis of classical electrodynamics, the other three being Gauss's law for magnetism, Faraday's law of induction, and Ampère's law with Maxwell's correction. Gauss's law can be used to derive Coulomb's law, and vice versa.