Daniel Gralath

Daniel Gralath (30 May 1708 – 23 July 1767) was a physicist and a mayor of Danzig.

Gralath was born and died in Danzig (Gdańsk) in the Polish–Lithuanian Commonwealth. He came from a well-to-do trade family. He studied law and philosophy in Halle, Leyden and Marburg from 1728 to 1734. Later he became councilman and, in 1763, mayor of Danzig. He was also the first to combine several jars to make a battery, but that claim is disputed. From 1747 to 1756, he published his "History of Electricity" in three parts in issues of Versuche und Abhandlungen der Naturforschende Gesellschaft in Danzig, which may have contributed to the historical judgement that he was the first to combine several Leyden jars.