| 1938 Cork Junior Hurling Championship | |
| Champions: | Brian Dillons |
| Count: | 1 |
| Runners-Up: | Cloughduv |
| Previous Year: | 1937 |
| Previous Tournament: | 1937 Cork Junior Hurling Championship |
| Next Year: | 1939 |
| Next Tournament: | 1939 Cork Junior Hurling Championship |
The 1938 Cork Junior Hurling Championship was the 41st staging of the Cork Junior Hurling Championship since its establishment by the Cork County Board.
On 5 December 1938, Brian Dillons won the championship following a 5–02 to 3–03 defeat of Cloughduv in the final at Coachford Sportsfield.[1] It remains their only championship title.