John Henry Warren (ca 1812 – April 28, 1885) was an English-born merchant and politician in Newfoundland.
He was born in Devon, the son of William Warren, and is known to have been operating with a partner in the fish and wholesale-retail trade in St. John's in the 1830s.
Warren served in the Executive Council as surveyor general and chairman of the Board of Works.
He died at Belgrave Terrace, Torquay in England in 1885 while still a member of the council.
His daughter Laura married Charles R. Bowring who also served in the assembly and Legislative Council.