John Gellibrand Hubbard, 1st Baron Addington PC (21 March 1805 – 28 August 1889), was a City of London financier and a Conservative Party politician. Hubbard was born at Stratford Grove, Essex, the son of John Hubbard and his wife Marianne Morgan. He was a merchant in the City of London being head of the firm 'J. Hubbard & Co.', Russian Merchants. Convinced capital and income should be treated differently he lobbied parliament to recognise the legal treatment of income tax on earned income only, which was eventually achieved in 1907. He was of Chairman of the between 1853 and 1875.