The 2020 Malaysia Super League (), known as the CIMB Bank Liga Super Malaysia 2020 for sponsorship reasons, was the 17th season of the Malaysia Super League, the top-tier professional football league in Malaysia.
Johor Darul Ta'zim were the defending champions, having won their sixth title the previous season.
The first transfer window was from 16 January to 15 March 2020.
On 13 March 2020, it was announced that the league would be suspended indefinitely, due to the ongoing COVID-19 pandemic. On 17 July, it was announced that the league would resume in August dependent on the situation at the time. Due to time constraints, the home-and-away format has been scrapped. Teams played each other only once, meaning that the champion of the Super League was decided after eleven rounds of matches.
Kuala Lumpur and PKNP are relegated to the Malaysia Premier League after finishing bottom and second-bottom respectively in last season's Malaysia Super League.
Sabah and PDRM are promoted after securing their place as champions and 3rd-placed finishers in last season's Malaysia Premier League (runners-up Johor Darul Ta'zim II is ineligible for the Super League due to being the reserve team to Johor Darul Ta'zim).
As PKNS has changed their status as the reserve team to Selangor, they are therefore replaced by the 5th-placed finishers of last season's Malaysia Premier League UiTM (4th-placed finishers Terengganu II is ineligible for the Super League due to being the reserve team to Terengganu FC).
Promoted from the 2019 Malaysia Premier League
Relegated to the 2020 Malaysia Premier League
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Southeast Asia (SEA) players are required to have acquired at least 30 international caps for their senior national team with no period restriction on when they are earned while those who has less than 30 international caps will be subjected to MFL approval.
<small>Note: Flags indicate national team as defined under FIFA eligibility rules. Players may hold more than one FIFA and non-FIFA nationality.</small>
<small>Notes:</small>
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The table lists the positions of teams after each week of matches.<br>In order to preserve chronological evolvements, any postponed matches are not included to the round at which they were originally scheduled, but added to the full round they were played immediately afterwards.
Note <sup>4</sup> Player scored 4 goals