The 2012–13 Sultan Qaboos Cup was the 40th edition of the Sultan Qaboos Cup (Arabic: كأس السلطان قابوس), the premier knockout tournament for football teams in Oman. The competition began on 30 November 2012 with the Round of 32 and concluded on 26 May 2013. Dhofar S.C.S.C. were the defending champions, having won their eighth title in 2011. On Sunday 26 May 2013, Al-Suwaiq Club were crowned the champions of the 2012 Sultan Qaboos Cup when they defeated Al-Nahda Club 2-0, hence winning the title for the third time.