Lyde Browne (? - 10 September 1787, Foster Lane, Cheapside, London) was an 18th-century English antiquary and banker, who owned one of the largest antiquities collections of the time. This now forms the majority of the classical sculpture collections of the Hermitage Museum in Saint Petersburg and the Pavlovsk Palace in the city's suburbs.
Browne was elected a fellow of the Society of Antiquaries in 1752 (though he resigned in 1772). He travelled to Florence and Rome between 1753 and 1754. In Rome in 1758, he met the sculptor Simon Vierpyl, the archaeologist William Wilkins, and the buyer and collector Thomas Jenkins. Jenkins became his buying agent, sending him drawings of the statues he had purchased. These drawings were often given by Browne to the Society of Antiquaries in London.
By 1762, Browne moved the museum he had established in Rome back to his country house, Warren House in Wimbledon. In 1768, he published Catalogus veteris aevi varii generis monumentorum quae cimeliarchio Lyde Browne … asservantur (Catalogue of the various ancient monuments in the museum of Lyde Browne), a Latin catalogue of 130 of its objects with 80 detailed entries. That year, he also became a director of the Bank of England, a post he held until his death.
He then took a second journey to Italy between 1776 and 1778, during which Pompeo Batoni painted his eldest daughter Frances's portrait. In 1779, he published Catologo [sic] dei piu scelti e preziosi marmi, che si conservano nella galleria del Sigr Lyde Browne (Catalogue of the choicest and most precious marbles in the gallery of Lyde Browne), another (Italian) catalogue of 260 objects. Both this and the earlier catalogue provided provenance for marbles and other objects from well known Italian collections and excavations near Rome; a third seems to have been planned, judging by the survival of drawings of more objects from the collection by Giovanni Battista Cipriani prepared for engraving.