'Abd al-Rahman ibn Sa'ud al-Thani[2][3][4] (1971-1975)* Ahmad bin Sayf Al Thani[5] (1989-1994) Nayib Muhammad al-Nuaymi[6] (1995-1997) Ahmad bin Muhammad Ali al-Subayi[7] (1997-1999) [Acting] Hasan bin Abdallah al-Ghanim[8] (2000-2012) Hassan Lahdan Saqr Al Mohannadi[8] (2013–present)