The Ahmadiyya Caliphate is a non-political caliphate established on May 27, 1908, following the death of Mirza Ghulam Ahmad, the founder of the Ahmadiyya Muslim Community, who claimed to be a Prophet, a Messenger, the promised Messiah and Mahdi, the expected redeemer awaited by Muslims. It is believed by Ahmadis to be the re-establishment of the Rashidun Caliphate that commenced following the death of the Islamic prophet Muhammad. The caliphs are entitled Khalīfatul Masīh, sometimes simply referred to as Khalifa. The caliph is the elected spiritual and organizational leader of the worldwide Ahmadiyya Muslim Community and is the successor of Ghulam Ahmad. He is believed by the Community to be divinely ordained and is also referred to by its members as Amir al-Mu'minin and Imam Jama'at. The 5th and current Caliph of the Messiah of the Ahmadiyya Community is Mirza Masroor Ahmad.

Mirza Ghulam Ahmad was an Indian religious leader and the founder of the Ahmadiyya movement in Islam. He claimed to have been divinely appointed as the promised Messiah and Mahdī—which is the metaphorical second-coming of Jesus (mathīl-iʿIsā), in fulfillment of the Islamic prophecies regarding the end times, as well as the Mujaddid of the 14th Islamic century.