The Treaty of Nymphenburg was a treaty between Bavaria and Spain that was concluded on May 28, 1741 at the Nymphenburg Palace in Munich. It was the first formal pact of a series of French-sponsored alliances against the Habsburg Monarch, Maria Theresa. Through the agreement, the Bavarian Elector Charles Albert gained the support of King Philip V of Spain to become the next Holy Roman Emperor against the claims of the Habsburgs. The treaty was brokered by Marshal Belleisle under the authority of Louis XV of France. As part of the negotiations, the French agreed to materially support Charles Albert's claims. The treaty signaled the expansion of the First Silesian War, which started as a local war between Prussia and the Habsburg Monarchy, into the War of the Austrian Succession, a pan-European conflict.

Charles VII was Prince-Elector of Bavaria from 26 February 1726 and Holy Roman Emperor from 24 January 1742 to his death. He was also King of Bohemia from 1741 to 1743. Charles was a member of the House of Wittelsbach, and his reign as Holy Roman Emperor thus marked the end of three centuries of uninterrupted Habsburg imperial rule, although he was related to the Habsburgs by both blood and marriage.