Fountain of the Eagle, Renaissance fountain in Vatican Gardens, Vatican City.

The Fountain of the Eagle is a Renaissance fountain in the Vatican Gardens built on an octagonal base decorated with dragons and eagle sculptures across its multiple tiers. The structure rises through several levels with carefully designed basins that channel water in cascading stages.

The fountain was commissioned in the early 1600s under Pope Paul V and redesigned by Carlo Maderno. During this renovation, one of the lower basins was replaced while the original granite base remained untouched.

The eagle and dragon carved into the fountain are the heraldic animals of Pope Paul V, born Camillo Borghese, who had it built in 1611–1612. The Triton riding a dolphin and blowing a horn, carved by Galeazzo Mondella called Moderno, may have inspired Bernini's Roman Fontana del Tritone. Two sirens appear in the water of the basin before the grottoes.

The fountain is only accessible through guided tours of the Vatican Gardens, which require advance bookings. Visitors should wear appropriate clothing and be prepared for varied terrain and walking paths.

The water arrives from Lake Bracciano, 39 km away, via a branch of the ancient Trajan aqueduct that Pope Paul V had brought back into use in 1611. The same supply fed the other Vatican fountains. The sculptor Galeazzo Mondella, called Moderno, made the triton riding a dolphin and blowing a horn; that figure may have inspired Bernini's Roman Fontana del Tritone.