- Source: 1981 Cork Junior Hurling Championship
- 1981 Cork Junior Hurling Championship
- Cork Junior A Hurling Championship
- 1981 Cork Intermediate Hurling Championship
- Cork Junior A Football Championship
- Cork Premier Junior Hurling Championship
- 1980 Cork Junior Hurling Championship
- St Finbarr's National Hurling & Football Club
- 1983 Cork Junior Hurling Championship
- Cork Intermediate A Hurling Championship
- All-Ireland Senior Club Hurling Championship
The 1981 Cork Junior Hurling Championship was the 84th staging of the Cork Junior Hurling Championship since its establishment by the Cork County Board. The championship ran from 27 September to 1 November 1981.
On 1 November 1981, Milford won the championship following a 1–10 to 0–11 defeat of St. Catherine's in the final. It remains their only championship title.
Christy Clancy was the championship's top scorer with 0-13.
Qualification
Results
= Quarter-finals
=Milford received a bye in this round.
= Semi-finals
== Final
=Championship statistics
= Top scorers
=Overall
In a single game
= Miscellaneous
=Bernie O'Connor had the unusual distinction of playing for Meelin while also serving as coach of Milford.