Abraham Yizhaki () was a Talmudic scholar and dayyan who lived in Salonica toward the end of the sixteenth century.
He was the author the four-part work Aḥot Ḳeá¹Âannah on the laws of gets involving minors, printed at the end of Jacob Ḥagiz's Halakot Ḳeá¹Âannot. The work is quoted in Joseph Almosnino's Edut bi-Yehosef (i., No. 54) and in Ḥasdai Peraḥya's Torat Ḥesed (No. 65).