2023 Filoil EcoOil Preseason Cup
| 16th Filoil EcoOil ECJ Preseason Cup | |
|---|---|
| Tournament details | |
| Country | Philippines |
| City | San Juan |
| Venue(s) | Filoil EcoOil Centre |
| Teams | 20 |
| Defending champions | NU Bulldogs |
| Final positions | |
| Champions | UP Fighting Maroons (1st title) |
| Runners-up | De La Salle Green Archers |
| Third place | NU Bulldogs |
| Fourth place | Perpetual Altas |
The 2023 Filoil EcoOil Preseason Cup, officially referred to as the 16th Filoil EcoOil Preseason Cup, is the sixteenth edition of the collegiate basketball tournament organized by Filoil EcoOil Sports. The tournament was contested by seven teams from the University Athletic Association of the Philippines (UAAP), ten from the National Collegiate Athletic Association (NCAA), and one each from National Athletic Association of Schools, Colleges and Universities (NAASCU), Universities and Colleges Basketball League (UCBL), and National Collegiate Athletic Association – South (NCAA South). All games were held at the Filoil EcoOil Centre in San Juan.
The NU Bulldogs entered this tournament as the defending Preseason Cup champions.