Louis-Jacques-Mandé Daguerre (November 18, 1787 – July 10, 1851) was a French artist and chemist, recognized for his invention of the daguerreotype process of photography.

Daguerre was born in Cormeilles-en-Parisis, Val-d'Oise, France. He apprenticed in architecture, theater design, and panoramic painting. Exceedingly adept at his skill for theatrical illusion, he became a celebrated designer for the theater and later came to invent the Diorama, which opened in Paris in July 1822.

In 1826, Joseph Nicéphore Niépce produced the world's first permanent photograph (known as a Heliograph). Daguerre partnered with Niépce two years later, beginning a four-year cooperation. Niépce died suddenly in 1833. The main reason for the "partnership", as far as Daguerre was concerned, was connected to his already famous dioramas. Niepce was a printer and his process was based on a faster way to produce printing plates. Daguerre thought that the process developed by Niepce could help speed up his diorama creation.