Johann Christoph Gustav von Struve was a German diplomat.
He was born on 26 September 1763 in Regensburg (at this time a Free Imperial City) to the diplomat Anton Sebastian von Struve, the Russian ambassador to the Reichstag in Regensburg.
His mother was Johanne Dorothea Werner of Sondershausen in the Thuringian states.
Gustav, as he was known, was a signer to the Treaty of Paris of 1814.