The 2019 Liga 3 was the third season of the Liga 3 under its current name, the fourth season under its current league structure, and the only amateur league football competition in Indonesia.
Persijap defeated PSKC 3–1 in the final at the Pakansari Stadium to won their first Liga 3 title.
Players born on or after 1 January 1997 are eligible to compete in this league.
Notes: The following teams qualified from regional route for the national round.
[41] And also supposedly AS Abadi competed as one of 10 teams that qualified for the second round last season.
[44] The following teams qualified from pre-national route for the national round.