2018–19 Bataan Risers season

The 2018–19 Bataan Risers season was the second season of the franchise in the Maharlika Pilipinas Basketball League (MPBL). The team finished with a league-best 23–5 record, but lost in the Division Semifinals to the Manila Stars in three games.

Bataan was able to improve from their 2–7 record in the previous season with their sixth win against the Makati Skyscrapers on September 1, surpassing their previous campaign in win percentage. On November 27, they clinched their first ever winning season with their 13th win against the Caloocan Supremos. Both wins were part of the team's 14-game winning streak. By the end of the regular season, the Bataan Risers finished 23–2, only losing to Manila and San Juan during the season. With a .920 winning percentage, they hold the highest such in the league's semi-professional era.

The Risers entered the playoffs with the league's best record at the first seed in the North Division. They first swept Caloocan in the Division Quarterfinals before stumbling upon Manila in the Division Semifinals. After winning game 1, Bataan would lose the next two games, ending their campaign. As of 2023, the 2018–19 Bataan Risers are currently the only first-seeded team to have not won a championship.

The Risers played all of their home games this season at the Bataan People's Center in Balanga.