Maximilian Karl Albert, Prince of Löwenstein-Wertheim-Rochefort (14 July 1656 – 26 December March 1718) was an Austrian military officer and the first Prince of Löwenstein-Wertheim-Rochefort.

Maximilian Karl Albert was the fourth child and the first son of Ferdinand Karl, Count of Löwenstein-Wertheim-Rochefort (1616 - 1672) and his wife Countess Anna Maria of Fürstenberg (1634 - 1705); he was followed by ten siblings.

Maximilian Karl, entered the emperor's service at an early age, was an acting imperial advisor since 1684 and was named privy councilor of the empire in 1699. After Prince Elector Max Emanuel of Bavaria was forced into exile in 1704, Maximilian Karl became the imperial administrator of Bavaria and, in his new rank as a prince, assumed the honorable position of a principle commissioner, the permanent representative of the emperor in the imperial diet from 1712 on.

On 3 April 1711 he was elevated to the status of a prince by Emperor Joseph I. He was granted principality for all his legitimate descendants by the emperor's brother and successor, Emperor Karl VI, on 8 January 1712.

His last office in the imperial service, which he held from 1717 until his death was the governorship of the Duchy of Milan, which Prince Eugene of Savoy had conquered for the House of Habsburg.

Maximilian Karl died and was buried in Milan; his heart was transferred and buried in the crypt of the collegiate church of Wertheim.

On 26 August 1678, Maximilian Karl Albert married the Tyrolean Countess Maria Polyxena Khuen von Lichtenberg und Belasi. The marriage produced ten children:

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