Byron King-Noel, 12th Baron Wentworth, styled Viscount Ockham (12 May 1836 – 1 September 1862) was a British peer and the eldest of the three legitimate grandchildren of George Gordon, Lord Byron.
Lord Ockham was the eldest son of William King-Noel, 1st Earl of Lovelace and his wife, Ada Lovelace, Byron's daughter and an inventor of analytical machines with Charles Babbage with whom she was instrumental in the early theoretical and practical development of computer programming. He gained the rank of officer in the service of the Royal Navy, although he deserted, worked his passage back to Britain and became a shipyard worker. As his mother predeceased him, he inherited the barony of Wentworth from his grandmother, Annabella, Lady Byron (the wife of the poet Lord Byron) but two years later died unmarried and childless at the age of 26, and his barony passed to his brother, Ralph, who was then styled Viscount Ockham and later inherited the earldom.