Grand Ayatollah Sayyid Ali Sistani is the leading spiritual leader of ______ Shia Muslims. September 14, 2021September 14, 2021 administrator Grand Ayatollah Sayyid Ali Sistani is the leading spiritual leader of ______ Shia Muslims.IraqiWell Done. Your Answer is Correct Keep it Up!IranianSyrianQatari Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Like this:Like Loading...