Yousaf Borahil al-Mismari (Arabic: يوسف بورحيل المسماري) (ca. 1866 — 19 December 1931) was a well known Libyan Muslim resistance leader fighting against Italian colonization and deputy leader of the Libyan Jihad after the death of Omar Al-Mokhtar. He was killed in a confrontation with Italian security forces in Libya at the age of 65.