| Honorific Prefix: | Jalal ad-Din |
| Masud Jani | |
| Office: | Governor of Bengal |
| Term: | 1247–1251 |
| Father: | Alauddin Jani |
| Predecessor: | Tughlaq Tamar Khan |
| Successor: | Malik Ikhtiyaruddin Iuzbak |
Masud Jani (Persian: {{Nastaliq|مسعود جاني, Bengali: মাসুদ জানী) was the Governor of Bengal during 1247–1251 CE.
Masud was the son of a previous Bengali governor Alauddin Jani.[1]
Masud Jani was appointed Governor of Bengal after the death of the rebellious Tughlaq Tamar Khan in 1247 CE. He adopted the title Malik al-Muluk ush-Sharq (King of the Eastern kings) after defeating an Odia garrison at Lakhnauti, the old Capital of the Province, however mutinies among his men and Tamar Khan's loyalists prevented him from consolidating on this victories. In 1249, he renovated a sacred building in Gangarampur, Old Malda which was originally built during the reign of Sultan Iltutmish. Jani is referred to in the inscription as "The Great King, Jalal al-Haqq wad-Din, King of the Eastern kings, Masud Shah Jani" (Arabic: ملك المعظم جلال الحق والدين ملك الملوك الشرق مسعود شاه جاني|Malik al-Muʽaẓẓam Jalāl al-Ḥaqq wad-Dīn Malik al-Mulūk ash-Sharq Masʽūd Shāh Jānī).[2]
After four years of unsuccessful warfare against King Narasingha Deva I of the Eastern Ganga empire, Masud Jani was removed from office in 1251 CE in favour of the more competent Malik Ikhtiyaruddin Iuzbak.[3]