División de Honor B de Rugby
| Current season, competition or edition: 2025–26 División de Honor B de Rugby | |
| Sport | Rugby union |
|---|---|
| Founded | 1998 |
| Organizing body | FER |
| No. of teams | 24 |
| Country | Spain |
| Most recent champion | CR Liceo Francés (2024–25) |
| Promotion to | División de Honor Élite |
| Relegation to | Regional leagues |
| Official website | ferugby.es |
División de Honor B is the third (2025–2026) level of Spanish league competition for rugby union clubs. The league began in 1998 and consists of three groups (North, East and South) of 8 or 9 teams each. The top 3 teams of each group and two best 4rd-placed teams qualify for promotion playoff.