Prince Gustav Otto Maximilian Lamoral of Thurn and Taxis (23 February 1848 – 9 July 1914),^{[citation needed]} full German name: Gustav Otto Maximilian Lamoral Prinz von Thurn und Taxis,^{[citation needed]} was the sixth child of Maximilian Karl, 6th Prince of Thurn and Taxis and his second wife Princess Mathilde Sophie of Oettingen-Oettingen and Oettingen-Spielberg. He was born on 2 February 1848 in Regensburg, Kingdom of Bavaria.^{[citation needed]}

Paul, one of his elder brothers, was an intimate friend and aide-de-camp of King Ludwig II of Bavaria.

On 8 September 1877, Gustav married Princess Karoline of Thurn and Taxis, daughter of Hugo Maximilian Prince of Thurn and Taxis and Almeria Countess of Belcredi, in Lautschin, Austria-Hungary. The couple did not have any children.

From 1882 to 1888, he was Bezirkshauptmann of Bregenz, Vorarlberg, Austria-Hungary, where he died at the age of 66 on 9 July 1914.

In 1884, Prince Gustav acquired the Villa Güllich in Bregenz, which is known today as Palais Thurn & Taxis with a public park area of about 16000 m², which is heritage-protected. Since 1984, the Palais also houses an international center for contemporary art.