Moïse Henri Gradis (30 July 1823 – 23 January 1905) was a French businessman and historian.

[1] He came from a family of prominent Portuguese-Jewish Bordeaux merchants who had flourished in the 18th century but were ruined by the French Revolution and the insurrections in Santo Domingo and Martinique.

[2][3] His parents were Benjamin Gradis (1789–1858) and Laure Sarah Rodrigues Henriquès (1803–46).

[1] Their daughter Emma Gradis married Georges Schwob d'Héricourt in 1889.

[4] The Maison Gradis recovered, and by 1892 was selling sugar from several producers in Bordeaux, Nantes and Marseille.