Marie Henri Andoyer (1 October 1862 – 12 June 1929) was a French astronomer and mathematician.
His father was bureau chief at the Banque de France.
Andoyer studied at the Lycée d’Harcourt, before attending the École Normale Supérieure, graduating in 1884 with a degree in mathematical sciences.
One of his sons was killed in World War I, his daughter married the mathematician Pierre Humbert.
[2] Andoyer was elected member of the French Académie des sciences on June 30, 1919 in the astronomy section.