Engraving of André-Marie Ampère
Born(1775-01-20)20 January 1775
Died10 June 1836(1836-06-10) (aged 61)
Marseille, France
NationalityFrench
Known forAmpère's circuital law, Ampère's force law
Scientific career
FieldsPhysics
InstitutionsÉcole Polytechnique
Signature

André-Marie Ampère (20 January 1775 – 10 June 1836) was a French physicist and mathematician who is generally regarded as one of the main founders of the science of classical electromagnetism, which he referred to as "electrodynamics". The electric current unit of measurement known as the ampere is named after him.