The 1992 All-Ireland Senior B Hurling Championship was the 19th staging of the All-Ireland Senior B Hurling Championship since its establishment by the Gaelic Athletic Association in 1974. The championship ran from 10 May to 12 July 1992.
Westmeath entered the championship as the defending champions, however, they were beaten by Carlow in the All-Ireland home final.
The All-Ireland final was played at the Emerald GAA Grounds in Ruislip on 12 July 1992 between Carlow and London, in what was their second meeting in the All-Ireland final and a first meeting in five years. Carlow won the match by 2-15 to 3-10 to claim their very first All-Ireland title.
Westmeath's David Kilcoyne was the championship's top scorer with 2-27.