The Imperial Academy of Arts, informally known as the Saint Petersburg Academy of Arts, was an art academy in Saint Petersburg, founded in 1757 by Ivan Shuvalov, the founder of the Imperial Moscow University, under the name Academy of the Three Noblest Arts. Catherine the Great renamed it the Imperial Academy of Arts and commissioned a new building, completed 25 years later in 1789 by the Neva River. The academy promoted the neoclassical style and technique, and sent its promising students to European capitals for further study. Training at the academy was virtually required for artists to make successful careers.

Formally abolished in 1918 after the Russian Revolution, the academy was renamed several times. It established free tuition; students from across the country competed fiercely for its few places annually. In 1947 the national institution was moved to Moscow, and much of its art collection was moved to the Hermitage. The building in Leningrad was devoted to the Ilya Repin Leningrad Institute for Painting, Sculpture and Architecture, named in honor of Ilya Repin, one of the foremost realist artists in Russia. Since 1991, it has been called the St. Petersburg Institute for Painting, Sculpture and Architecture.

The academy was initially located in the Shuvalov Mansion on Sadovaya Street. In 1764, Catherine the Great renamed it the Imperial Academy of Arts and commissioned its first rector, Alexander Kokorinov, to design a new building. It took 25 years to complete the Neoclassical edifice, which opened in 1789. Konstantin Thon was responsible for the sumptuous decoration of the interiors. He also designed a quayside in front of the building, with stairs down to the Neva River, and adorned it with two 3000-year-old sphinxes, which were transported from Egypt.

Ivan Betskoy reorganized the academy into a de facto government department; it supervised matters concerning art throughout the country, distributing orders and awarding ranks to artists. The academy vigorously promoted the principles of Neoclassicism by sending the most notable Russian painters abroad, in order to learn the ancient and Renaissance styles of Italy and France. It also had its own sizable collection of choice artworks intended for study and copying.

In the mid-19th century, the Academism of training staff, much influenced by the doctrines of Dominique Ingres, was challenged by a younger generation of Russian artists who asserted their freedom to paint in a Realistic style. The adherents of this movement became known as peredvizhniki (Itinerants, related to their desire to bring art to the people). Led by Ivan Kramskoi, they publicly broke with the Academy and organized their own exhibitions, which traveled from town to town across Russia. Ilya Repin, Mikhail Vrubel and some other painters still regarded the academy's training as indispensable for the development of basic professional and technical skills.

In 1893, Imperial Academy of Arts was divided into the Academy of Arts itself, which was responsible for all the artistic work in the Russian Empire, and the Higher Art School of the Academy of Arts, which dealt only with academic affairs. The initiator of the reform was the vice-president of the Academy, Count Ivan Ivanovich Tolstoy.

The Charter, approved at the end of 1893, divided the former Academy into two institutions:

Both institutions were located in St. Petersburg in the historic building of the Academy of Arts.