Guillain

Guillain may refer to:

People

 * Georges Guillain (1876–1961), French neurologist
 * Gilles Guillain (born 1982), Colombian-born French actor
 * Robert Guillain (1908–1998), French journalist and author of several books on Japan

Medical

 * Guillain–Barré syndrome, an acute polyneuropathy, a disorder affecting the peripheral nervous system
 * Triangle of Guillain-Mollaret, the myoclonic triangle, an important feedback circuit of the brainstem