Sayyid Ajall Shams al-Din Omar al-Bukhari (Persian: سید اجل شمس‌الدین عمر البخاری‎; Chinese: 赛典赤·赡思丁; pinyin: Sàidiǎnchì Zhānsīdīng; 1211–1279) was Yunnan's first provincial governor, appointed by the Mongol-led Yuan dynasty of China.