Syed Arifullah Hussaini HI(M) SI(M) TBt (Urdu: سيد عارف الله حسينى ; 23 April 1961 – 17 December 2020) also known as S.A. Hussaini, was a vice admiral in the Pakistan Navy.

[3] He graduated from the Naval Academy in 1981, and gained commissioned as Sub-Lieutenant.

[4] He was further educated at the Command and Staff College in Quetta, and attained MS in War studies from the National Defence University (NDU).

[5] He also studied for the national defence course in China, and qualified for the surface warfare from the United States.

[10] However, the most senior admiral in the Navy, Admiral Moh'd Zakaullah was promoted to the four-star appointment,[11] On 3 December 2015, Vice-Admiral Hussaini was appointed as a senior fleet commander in the Pakistan Navy, taking over the command, from Vice-Admiral[12] He has been decorated with Hilal-e-Imtiaz (Military), Sitara-e-Imtiaz (Military) and Tamgha-e-Basalat On 17 December 2020, he died due to COVID-19.