2019 Offaly Senior B Hurling Championship
| Teams | 8 | ||
|---|---|---|---|
| Sponsor | Molloy Environmental | ||
| Champions | Seir Kieran (1st title) Seán Coughlan (captain) Adrian Hynes (captain) | ||
| Runners-up | Clodiagh Gaels Darryl Kilroe (captain) | ||
| Relegated | Shamrocks | ||
| |||
The 2019 Offaly Senior B Hurling Championship was the second staging of the Offaly Senior B Hurling Championship since its establishment by the Offaly County Board.
The final was played on 19 October 2019 at St Brendan's Park in Birr, between Seir Kieran and Clodiagh Gaels, in what was their first ever meeting in the final. Seir Kieran won the match by 1–20 to 0–14 to claim their first ever championship title.