Edward Henry Palmer (7 August 1840 – August 1882) — known as E.H. Palmer — was an English orientalist and explorer.
Palmer was born in Green Street, Cambridge the son of a private schoolmaster. He was orphaned at an early age and brought up by an aunt. He was educated at The Perse School, and as a schoolboy showed the characteristic bent of his mind by picking up the Romani language and a great familiarity with the life of the Romani people. From school he was sent to London as a clerk in the city. Palmer disliked this life, and varied it by learning French and Italian, mainly by frequenting the society of foreigners wherever he could find it.
In 1859 he returned to Cambridge, almost dying of tuberculosis. He made a miraculous recovery, and in 1860, while he was thinking of a new start in life, fell in with Sayyid Abdallah, teacher of Hindustani at Cambridge, under whose influence he began his Oriental studies. He matriculated at St John's College in November 1863, and in 1867 was elected a fellow on account of his attainments as an orientalist, especially in Persian and Hindustani.
During his residence at St John's he catalogued the Persian, Arabic and Turkish manuscripts in the university library, and in the libraries of Kings and Trinity. In 1867 he published a treatise on Oriental mysticism, based on the Maksad-i-Aksa of Aziz ibn Mohammad Nafasi. He was engaged in 1869 to join the survey of Sinai, undertaken by the Palestine Exploration Fund, and followed up this work in the next year by exploring the desert of El-Tih in company with Charles Drake. They completed this journey on foot and without escort, making friends among the Bedouin, to whom Palmer was known as Abdallah Effendi.