Al-Muhdar Mosque (Arabic: مَسْجِد ٱلْمُحْضَار, romanized: Masjid Al-Muḥḍār) or Al-Mihdar Mosque (Arabic: مَسْجِد ٱلْمِحْضَار, romanized: Masjid Al-Miḥḍār) is one of the historical mosques in the ancient city of Tarim, in the Yemeni province of Hadramaut. It is attributed to Omar Al-Mihdar bin Abdul-Rahman Al-Saqqaf (Arabic: عُمَر ٱلْمِحْضَار بِن عَبْد ٱلرَّحْمَٰن ٱلسَّقَّاف, romanized: ʿUmar al-Miḥḍār bin ʿAbd Ar-Raḥmān As-Saqqāf), a Muslim leader who lived in the city during the 15th-century.