William John Blake (1805 – 15 September 1875) was a British Whig politician.Blake was elected a Whig Member of Parliament for Newport (Isle of Wight) at the 1837 general election but held the seat for just one term until 1841, when he stood but ended bottom of four candidates.
He stood again for election at the 1847 general election, but he was unsuccessful, ending third of four candidates.