Edme Hippolyte Marié-Davy (28 April 1820 – 26 July 1893) was a French chemist and inventor during the 19th century.

In 1854, he invented the first naval periscope, consisting in a vertical tube with two small mirrors fixed at each end at 45°.

[6][7] Based on it, he proposed a submarine with an electrically driven propeller.

[10] In the 1860s, he was Deputy Director of the Paris Observatory, in charge of meteorology.

[11] He devoted himself to the study of local thunderstorms, following the destructive storm of 14 November 1854, in the Crimean War.