Peter Borthwick (13 September 1804 – 18 December 1852) was a Scottish Conservative politician and newspaper editor.
[1] In 1833, he was appointed by the West India Committee to defend slavery in debates in Glasgow with English abolitionist George Thompson.
He was an outspoken defender of Don Carlos' Durango Decree, which excluded the British Auxiliary Legion from the terms of the Lord Eliot Convention, and also of British subjects who fought in the Carlist ranks.
This paper was noted for its outspoken support of Lord Palmerston's foreign policy.
Their son was Algernon Borthwick, 1st Baron Glenesk, who took over as editor of The Morning Post on the death of his father.