- Source: 1987 Cork Junior A Hurling Championship
- 1987 Cork Junior A Hurling Championship
- Cork Junior A Hurling Championship
- Cork Intermediate A Hurling Championship
- Mid Cork Junior A Hurling Championship
- East Cork Junior A Hurling Championship
- Cork Junior A Football Championship
- 1988 Cork Junior A Hurling Championship
- 1986 Cork Junior A Hurling Championship
- North Cork Junior A Hurling Championship
- Cork Junior B Hurling Championship
The 1987 Cork Junior A Hurling Championship was the 90th staging of the Cork Junior A Hurling Championship since its establishment by the Cork County Board. The championship ran from 4 October to 1 November 1987.
The final was played on 1 November 1987 at Páirc Uí Chaoimh in Cork, between Cloyne and Ballincollig, in what was their first ever meeting in the final. Cloyne won the match by 6-08 to 3-06 to claim their third championship title overall and a first title in 26 years. Cloyne were not officially confirmed as champions until three weeks later when they won the delayed East Cork JAHC title.
Cloyne's Ger Lewis was the championship's top scorer with 6-06.
Qualification
Results
= Quarter-finals
== Semi-finals
== Final
=Championship statistics
= Top scorers
=Overall
In a single game