Sir Sassoon Jacob Hai David, 1st Baronet (11 December 1849 – 27 September 1926) was a member of the community of Baghdadi Jews that lived in Bombay from the late 18th Century into the 20th Century. A prominent businessman, he was the lead promoter of the Bank of India, founded in 1906. He served on the council of the governor general of India, on the Imperial Legislative Council and the Bombay Municipal Corporation for twenty years, becoming its head in 1921. He was made a knight in 1905 and a baronet in 1911. He had partly financed the construction of the Gateway of India. He was married to Hannah Sassoon, the daughter of Elias David Sassoon. Their son was Sir Percival David, 2nd Baronet.