James Campbell (1820 – 30 September 1879) was an Irish-born Australian politician.
He was the son of farmers David and Dorothy Campbell, and migrated to New South Wales in 1845.
He had married Eliza Jane Nunn on the Isle of Man; they had one child.
In 1858 he moved to Sydney to partner in a merchant house.
In 1864 he was elected to the New South Wales Legislative Assembly for Morpeth, serving until his retirement in 1874.