Jean-Baptiste Eugène Napoléon Flandin (15 August 1809 in Naples – 29 September 1889 in Tours), French orientalist, painter, archaeologist, and politician.

He is most renowned for his famous drawings and paintings of Iranian monuments, landscapes, and social life made during his travels with the architect Pascal Coste between 1839 and 1841.

Despite its many predecessors, Flandin's Voyage en Perse remains a model of its kind and an important source, particularly on early Qajar Iran, due to both its text and its illustrations.

It provides many precious observations on history, archeology, arts, architecture, geography, social and court life, royal and provincial administration, military organization, etc.

There is hardly any illustrated book on Iran, particularly one dealing with the Qajar era, without reproductions of his celebrated paintings of monuments, bazaars, personages and costumes, street scenes, landscapes, etc.