- Source: 2023 Nueva Ecija Rice Vanguards season
The 2023 Nueva Ecija Rice Vanguards season was the third season of the franchise in the Maharlika Pilipinas Basketball League (MPBL).
Coming off a historic 2022 campaign that included the league's first regular season sweep, Nueva Ecija entered this season as the defending champions. They continued to show their winning prowess by starting with an 11-game winning streak before losing to Sarangani on their 12th game on June 3. On September 21, Nueva Ecija achieved their winningest season to date with their 22nd win over San Juan. They finished the season at second place in the North Division with a 23–5 record.
In the playoffs, Nueva Ecija swept the Pasay Voyagers in the division quarterfinals. In the division semifinals, however, Nueva Ecija would be swept by the sixth-seeded San Juan Knights.
The team played all of their home games at Nueva Ecija Coliseum in Palayan.
Preseason
Nueva Ecija was one of eight teams that took part in the 2023 MPBL Preseason Invitational. For the second consecutive time, they would reach the finals against the Zamboanga Family's Brand Sardines, however would once again fall short of the Invitational title.