The 2018–19 Saudi Professional League was the 44th edition of the Saudi Professional League, the top Saudi professional league for association football clubs, since its establishment in 1975. The season started on 30 August 2018 and concluded on 16 May 2019. Al-Hilal were the defending champions after winning the Pro League last season for the 15th time. Al-Wehda and Al-Hazem have entered as the promoted teams from the 2017–18 Prince Mohammad bin Salman League. Al-Nassr were crowned as league winners for the 8th time on 16 May, after defeating Al-Batin 2–1 on the final day of the season.