John Cashman (born 1997) is an Irish hurler who plays for Cork Senior Championship club Blackrock.
He is a former member of the Cork senior hurling team.
The Cashman family name is associated with the Blackrock club, and Cashman's father, Jim, and his uncle, Tom, won a total of six All-Ireland Championship medals between 1977 and 1990.
His grandfather, Mick Cashman, and his granduncle, Jimmy Brohan, were members of Cork's three-in-a-row All-Ireland Championship-winning team between 1952 and 1954.
Cashman's brother, Niall, was also a member of the Cork senior team.