James Thomas Helby (1842 - 29 August 1924) was a businessman and educationist.
For six years he was a member of the London School Board as one of the representatives of Lambeth West from 1885-1888. Standing as the "Ratepayer's Friend", he took the Moderate Party whip on the board and was chairman of the board's Works Committee. He was a controversial figure, described by the The Daily News as "the great champion of sectarianism under the guise of economy" and was defeated at the 1891 election.
He was also member of the Metropolitan Asylums Board and was its chair 25 May 1907 - 28 May 1910.
He died at Eastbourne in 1924 aged 82.