The two clubs reoppose after meeting in last year's county final.
Birr and St Cillian's have set up a championship final rematch in senior Offaly Camogie.
Both clubs emerged from their respective semi-finals over the weekend.
Having been beaten by Shinrone last time out, Birr turned the tables in St Brendan's Park on Sunday.
The final score was 3-10 to 0-12 in favour of the defending champions.
While in the double-header curtain raiser in St Brendan's Park, St Cillian's came away with a three point victory over Kilcormac-Killoughey.
Last year's beaten finalists won 0-10 to 0-7.
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