Joseph Marryat (7 October 1790 – 24 September 1876) was a British politician.
The son of Joseph Marryat, he was born in Grenada, where his father owned plantations worked by slaves.
He joined the West India Committee, which opposed the abolition of slavery.
At the 1826 UK general election, he stood as an independent in Sandwich.
[2][3] Marryat retired from the family business in 1849, moving to Ystradgynlais where he became co-owner of the Ynyscedwyn Iron Company.