Ai-Petri (; ) is a peak in the Crimean Mountains. For administrative purposes it is in the Yalta municipality of Crimea. The name is of Greek origin, and translates as "St. Peter" ().
Ai-Petri is one of the windiest places in Crimea. The wind blows for 125 days a year, reaching a speed of .
The peak is located above the city of Alupka and the town of Koreiz.
There is a cable car that takes passengers from a station near Alupka to the main area in Ai-Petri.
The Ai-Petri massif makes up one side of the Grand Canyon of Crimea, with the other side being the .
A military base is located here. It was attacked in May 2024. Newsweek reported that a Russian commander was killed in the attack.