2019 Liga 1

The 2019 Liga 1 (known as the Shopee Liga 1 for sponsorship reasons) is the third season of Liga 1 and the 10th season of the top-flight Indonesian professional league for association football clubs since the establishment of Indonesian Super League in 2008. The season start on 15 May 2019 and is scheduled to finish on 22 December 2019. Fixtures for the 2019 season were announced on 7 May 2019.

Persija are the defending champions. PSS, Semen Padang, and Kalteng Putra joined as the promoted teams from the 2018 Liga 2. They replace Mitra Kukar, Sriwijaya, and PSMS who were relegated to the 2019 Liga 2.

The pre-season transfer window was opened between 15 February and 9 May 2019 while the mid-season transfer window will be opened between 19 August and 16 September 2019.

Teams
Eighteen teams is competing in the league – the top fifteen teams from the previous season and the three teams promoted from the Liga 2. The new teams this season are PSS, Semen Padang, and Kalteng Putra, who replaced Mitra Kukar, Sriwijaya, and PSMS.

Name changes

 * PS TIRA merged with Persikabo into TIRA-Persikabo and relocated to Cibinong.
 * Perseru relocated to Bandar Lampung and were renamed to Badak Lampung.

Personnel and kits
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players and coaches may hold more than one non-FIFA nationality.

Foreign players
Football Association of Indonesia restricted the number of foreign players to four per team, including one slot for a player from AFC countries. Teams can use all the foreign players at once.