Sydney James Stern, 1st Baron Wandsworth JP (1845 – 10 February 1912) was a British banker, Liberal Member of Parliament and philanthropist. For some time Stern worked in his father's firm of Stern Brothers. He unsuccessfully contested the Middle Division of Surrey in 1880 and 1884, Ipswich in 1886, Tiverton in 1885, but was finally elected as MP for Stowmarket in 1891. On 19 July 1895 he was raised to the peerage as Baron Wandsworth, of Wandsworth in the County of London (he also held a Portuguese viscountcy by right of his father). He was a Justice of the Peace for Surrey and London and was awarded the rank of honorary colonel in the 4th volunteer battalion of the East Surrey Regiment. He served as vice-president of the London and Counties Radical Union.