The 2015–16 Oman Professional League Cup (known as the Mazda Professional Cup for sponsorship reasons) was the fifth edition of a domestic football competition held in Oman.

The competition featured all the clubs playing in the top flight in the 2015–16 season.

The competition began on 5 September 2015, and concluded on 27 March 2016.

were crowned the champions defeating Sohar SC 2–0 in the finals and hence winning the title for the first time.

[14][15][16] *The 2015 Oman Professional League Cup Quarter-final between Muscat Club and Fanja SC scheduled to be played on 22 December 2015 was called off and postponed to 4 January 2015 due to late arrival of ambulance on the match day[17] [18][19][20][21]