Maurice Couette

Maurice Marie Alfred Couette
Born9 January 1858
Died18 August 1943 (1943-08-19) (aged 85)
NationalityFrench
CitizenshipFrench
Alma materSorbonne
Scientific career
FieldsRheology and Fluid mechanics
InstitutionsUniversité Catholique de l'Ouest
Doctoral advisorGabriel Lippmann

Maurice Marie Alfred Couette (9 January 1858, Tours – 18 August 1943, Angers) was a French physicist known for his studies of fluidity.

Couette is best known for his contributions to rheology and the theory of fluid flow. He designed a concentric cylinder viscometer that he used to accurately measure the viscosity of fluids. The laminar flow observed in the gap between the two cylinders is known as Couette flow. He studied the boundary conditions of a fluid and showed that the "no slip" condition was satisfied for the fluids and wall materials tested.