Richard John Uniacke (June 6, 1789 – February 21, 1834) was a lawyer, judge and political figure in Nova Scotia.
He represented Cape Breton County in the Nova Scotia House of Assembly from 1820 to 1830.
He was educated at King's College in Windsor, went on to study law and was called to the bar in 1810.
He resigned his appointments in Cape Breton and returned to Halifax where he became advocate general of the vice admiralty court in 1819, succeeding his father.
[2] In 1820, he was elected to the legislative assembly for Cape Breton, after it was reunited with Nova Scotia.