The 1989 Railway Cup Hurling Championship was the 63rd staging of the Railway Cup since its establishment by the Gaelic Athletic Association in 1927. The cup began on 7 October 1989 and ended on 8 October 1989.
Leinster were the defending champions, however, they were beaten by Connacht in the semi-final.
On 8 October 1989, Connacht won the cup after a 4-16 to 3-17 defeat of Munster in the final at Wexford Park. This was their 7th Railway Cup title overall and their first title since 1987.