| 1942 Railway Cup | |
| Dates: | 15 February – 17 March 1942 |
| Teams: | Connacht Leinster Munster |
| Champions: | Munster |
| Count: | 10 |
| Matches: | 2 |
| Goals: | 19 |
| Points: | 29 |
| Top Scorer: | Mossy McDonnell (4-06) |
| Previous Year: | 1941 |
| Previous Tournament: | 1941 Railway Cup Hurling Championship |
| Next Year: | 1943 |
| Next Tournament: | 1943 Railway Cup Hurling Championship |
The 1942 Railway Cup Hurling Championship was the 16th series of the Railway Cup, an annual hurling championship organised by the Gaelic Athletic Association. The championship took place between 15 February and 17 March 1942. It was contested by Connacht, Leinster and Munster.
Leinster entered the championship as the defending champions.
On 17 March 1942, Munster won the Railway Cup after a 4-09 to 4-05 defeat of Leinster in the final at Croke Park, Dublin. It was their 10th Railway Cup title overall and their first since 1940. Christy Ring made his first appearance for Munster in the final and won the first of a record 18 Railway Cup winners' medals.
Leinster's Mossy McDonnell was the Railway Cup's top scorer with 4-06.
Semi-final
Final
| Rank | Player | County | Tally | Total | Matches | Average | |
|---|---|---|---|---|---|---|---|
| 1 | Mossy McDonnell | Leinster | 4-06 | 18 | 2 | 9.00 | |
| 2 | Jim Langton | Leinster | 2-02 | 8 | 2 | 4.00 | |
| 3 | Jackie Power | Munster | 2-00 | 6 | 1 | 6.00 |
| Rank | Player | County | Tally | Total | Opposition | |
|---|---|---|---|---|---|---|
| 1 | Mossy McDonnell | Leinster | 3-01 | 10 | Munster | |
| 2 | Mossy McDonnell | Leinster | 1-05 | 8 | Connacht | |
| 3 | Jim Langton | Leinster | 2-01 | 7 | Connacht | |
| 4 | Jackie Power | Munster | 2-00 | 6 | Leinster | |
| 5 | M. J. Flaherty | Connacht | 0-06 | 6 | Leinster |