Isaac of Ourville (Hebrew: יצחק מאורביל Yiṣḥaq me-Orvil, fl.
late 13th century[1]) was a medieval French rabbi, author of the mostly-lost Sefer haMenahel, a book of halakha (Jewish ritual law).
According to Gross, אורביל is probably Ourville (Ourville-en-Caux), Seine-Maritime, or perhaps Orville, Orne.
He was confused by Samuel David Luzzato with a similarly named rabbinical authority, Isaac ben Dorbolo, after Rapoport's misinterpretation of the latter's patronymic as "d'Orbolo".
[5] Most of his only known work, the halakhic Sefer HaMenahel (Hebrew: המנהל "the Guide"), is lost, but select portions have survived as follows: