The 2018–19 Laguna Heroes season was the inaugural season of the franchise in the Maharlika Pilipinas Basketball League (MPBL).
[1] Despite starting the season 6–4 in their first ten games, the team would only win four out of the fifteen remaining games.
This resulted in the team only finishing ninth with a 10–15 record.
The team played all of their home games this season at the Alonte Sports Arena in Biñan.