Patrick Blake (March 6, 1846 – November 20, 1909) was a businessman and politician in Prince Edward Island, Canada.
He represented 5th Queens in the Legislative Assembly of Prince Edward Island from 1883 to 1891 as a Conservative member.
He was born in Charlottetown as the son of John Blake, an Irish immigrant.
With his brother Maurice, he became a partner in his father's butchering business, later expanding into exporting cattle and wholesale.
He set up business in Sydney, Nova Scotia in 1901 but returned to the island shortly before his death in Charlottetown in 1909.