The 1956–57 National Hurling League was the 26th season of the National Hurling League.
Wexford came into the season as defending champions of the 1955-56 season.
[1] Antrim entered Division 1 as the promoted team from the previous season.
On 12 May 1957, Tipperary won the title following a 3–11 to 2–7 win over Kilkenny in the final.
[2] Westmeath were relegated from Division 1.