Frédéric Justin Collet

Frédéric Justin Collet (28 April 1870 – 1966) was a French pathologist and otolaryngologist.

He studied medicine in Lyon, where he had as instructors Raphaël Lépine (1851–1919), and Antonin Poncet (1849–1913).

In 1910 with André Chantemesse (1851–1919) and Antonin Poncet (1849–1913), he founded the Bibliothèque de la Tuberculose, which was a collection of monographs dedicated to tuberculosis.

In 1915 he described a disorder he called "glossolaryngoscapulopharyngeal hemiplegia", which was later to be named "Collet's syndrome".

This condition is sometimes referred to as "Collet-Sicard syndrome", named in conjunction with Jean-Athanase Sicard, who provided a description of the disorder independent of Collet.