Sir John Lubbock, 1st Baronet (bapt 20 August 1744 – 24 February 1816) was an eminent English banker. Lubbock was also a merchant and Member of Parliament. He was the first son of a Cambridge don, the Reverend William Lubbock of Lammas, Norfolk, by Elizabeth, daughter of Thomas Cooper of North Walsham, Norfolk. He married Elizabeth Christiana Commerell, daughter of his business partner, Frederick Commerell of Hanwell, Middlesex and his wife Catherine Elton on 12 Oct 1771 at St Dunstan’s in the East, London. They had no children. In 1806 he was created a baronet, of Lammas, with remainder to his nephew John William Lubbock, who succeeded him as second baronet.
He was sent to London to learn business in the house of Commerell in Bishopsgate Street, London, of which he became a partner after his marriage. John adopted his nephew, John William Lubbock and had him educated at Charterhouse. After, he taught John William about his business.
In 1772, Lubbock became a partner in the London bank of Lemon, Buller, Finlay and Lubbock of 15 Abchurch Lane and later Mansion House Street. In 1785, the partnership changed to Forster, Lubbock and Bosanquet and in 1801 to Forster, Lubbock, Forster and Clarke. Finally, in 1814 it was Sir John Lubbock, Lubbock & Co, the second partner being John William Lubbock, John’s nephew and heir.
In 1784, he stood unsuccessfully as parliamentary candidate for the Devizes constituency in Wiltshire. In November 1795 he was one of the sponsors of the London merchants and bankers loyal declaration of support for Pitt’s government. At the ensuing election in 1796 he was returned for Bossiney in Cornwall as a guest of Lord Mount Edgecumbe. In 1802, he appeared as a candidate for Leominster, Herefordshire and secured his election with votes as follows