The 2020–21 season was Al-Fayha's 67th year in their existence and their first back season in the MS League. Al-Fayha were relegated to the second tier of Saudi football after finishing 14th in the 2019–20 Saudi Pro League. The club participated in the MS League only following the Saudi FF's decision to reduce the number of teams in the King Cup.
The season covered the period from 22 September 2020 to 30 June 2021.
Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply. Players may hold more than one non-FIFA nationality.
Source: goalzz.com Rules for classification: 1) Points; 2) Head-to-head points; 3) Head-to-head goal difference; 4) Total goal difference; 5) Total goals scored; 6) Fair-play points (Note: Head-to-head record is used only after all the matches between the teams in question have been played).[40] (C) Champions; (P) Promoted; (R) Relegated Notes:
^ abAl-Kawkab finished ahead of Al-Khaleej on overall goal difference: Al-Kawkab −1, Al-Khaleej −5 (Al-Kawkab 2–2 Al-Khaleej, Al-Khaleej 0–0 Al-Kawkab).
^ abAl-Diriyah finished ahead of Jeddah on overall goal difference: Al-Diriyah −5, Jeddah −6 (Jeddah 1–2 Al-Diriyah, Al-Diriyah 0–1 Jeddah).
^ abAl-Adalah finished ahead of Al-Sahel on head-to-head points: Al-Adalah 3–0 Al-Sahel, Al-Sahel 1–2 Al-Adalah.