Jules Alphonse Eugène Itier (French pronunciation: [ʒyl alfɔ̃s øʒɛn itje]; 1802–1877) was a French customs inspector and amateur daguerreotypist.
Between 1842 and 1843 he traveled to Senegal, Guadeloupe and India, where he took a number of early daguerreotypes.
In December 1843, Itier was sent to accompany Théodore de Lagrené on his journey to China, where he had been dispatched by Louis Philippe to conclude a commercial treaty.
In China, Itier documented the conclusion of the Treaty of Whampoa and took a number of daguerreotypes of Chinese people and scenery in the Guangdong region.
Upon his return to France, Itier wrote an extensive travelogue of his journey to China.