The 1939 Railway Cup Hurling Championship was the 13th series of the Railway Cup, an annual hurling championship organised by the Gaelic Athletic Association. The championship took place between 26 February and 17 March 1939. It was contested by Connacht, Leinster and Munster.
On 17 March 1939, Munster won the Railway Cup after a 4–04 to 1–06 defeat of Leinster in the final at Croke Park, Dublin. It was their 8th Railway Cup title overall and their third in succession.
Munster's Locky Byrne was the Railway Cup's top scorer with 3-01.