Gustav Adolf Wilhelm Graf von Ingenheim (2 January 1789, Berlin – 4 September 1855, Wiesbaden) was a German art collector.

He was the son of King Friedrich Wilhelm II of Prussia and his morganatic wife, Julie von Voss, who had been given the title "Countess Ingenheim".

He also hosted a salon that alternated between Rome and Berlin, while cultivating contacts with well known contemporary artists, such as Johann Erdmann Hummel, Aloys Hirt, Christian Daniel Rauch and Karl Friedrich Schinkel.

In addition, he supported Moritz Daniel Oppenheim and Franz Ludwig Catel with his own commissions and secured funds for the archaeological research being conducted by Eduard Gerhard.

In 1825, his half-sister, Countess Julie von Brandenburg [de], and her husband, Frederick Ferdinand, Duke of Anhalt-Köthen, converted to Catholicism.