The Ahmadiyya flag, first designed in 1939, during the leadership of the Second Caliph
 
 

The Ahmadiyya Muslim Community is a self-proclaimed Islamic revivalist movement founded in 1889 by Mirza Ghulam Ahmad of Qadian, India, who claimed to be the promised Messiah and Mahdi, awaited by Muslims. He also claimed to be a follower-prophet subordinate to Muhammad, the prophet of Islam.The group are traditionally shunned by the majority of Muslims.

After Ahmad's death in 1908, his first successor, Hakeem Noor-ud-Din, became the caliph of the community and assumed the title of Khalifatul Masih(Successor or Caliph of the Messiah).After Hakeem Noor-ud-Din, the first caliph, the title of the Ahmadiyya caliph continued under Mirza Mahmud Ahmad, who led the community for over 50 years. Following him were Mirza Nasir Ahmad and then Mirza Tahir Ahmad who were the third and fourth caliphs respectively.  The current caliph is Mirza Masroor Ahmad, who lives in London.