Neptunbrunnen, Fountain in Old Botanical Garden, Munich, Germany

The Neptunbrunnen is a monumental fountain in the Alter Botanischer Garten, built in 1937 to designs by Josef Wackerle and Oswald Bieber. Its basin measures 30 by 15 metres; in the centre Neptune stands with a trident and his tunic over one shoulder beside a hippocamp that has carried him to the surface. Water-spouting Tritons surround the group, and a jet bursts at intervals from the belly of the fish-tailed horse.

The fountain was created in 1937 under the direction of architects Joseph Wackerle and Oswald Eduard Bieber. The work reflects the artistic movements of that era, when public monumental fountains were an important part of urban design.

The fountain takes its name from Neptune, the Roman god of the sea, shown with a trident and a fish-tailed horse (hippocamp) that has brought him to the surface. The surrounding Tritons spout water, and a fountain bursts at intervals from the horse's belly. The ensemble stands in the Alte Botanischer Garten, a park redesigned in 1935–1937.

The fountain stands in the southeast of the Old Botanical Garden, on the axis of the Justizpalast, near the Elisenstraße entrance and Karlsplatz (Stachus). The basin measures 30 by 15 metres and is ringed by flower beds and benches. The water jets run intermittently, so a short wait may be needed to see the fountain at full flow.

The basin, built by Oswald Bieber, measures 30 metres by 15. Water also bursts at intervals from the belly of the fish-tailed horse, while thin jets fall from the tritons' mouths and from the back of the rock block. Two low fountains once played in the basin as well.