The Großer Tiergarten, simply known as Tiergarten, is an urban public park of Germany located in the middle of Berlin, completely in the homonymous locality. The park is of 210 hectares (520 acres); and among urban gardens of Germany, only the Englischer Garten of Munich (417 ha or 1,030 acres) is larger.

The beginnings of the Tiergarten can be traced back to 1527. It was founded as a hunting area for the king, and was situated to the west of the Coelln city wall, which was the sister town of Old Berlin. It also sat in the same vicinity as the Berlin Stadtschloss. In 1530 the expansion began; acres of land were purchased and the garden began to expand towards the north and west. The total area extended beyond the current Tiergarten, and the forests were perfect for hunting deer and other wild animals. The king had wild animals placed within the Tiergarten, which was fenced off from the outside to prevent the creatures from escaping, and was the main hunting ground for the electors of Brandenburg. This king’s hobby, however, began to fade away as the city of Berlin began to expand and the hunting area shrank to accommodate the growth.

Friedrich I, king from 1657 until 1713, feeling the need to bring change to the hunting grounds, built many structures that are still visible today. As the King was expanding Unter den Linden, a roadway that connected the Berlin Stadtschloss and the Tiergarten, he had a swath of forest removed in order to connect his castle to the newly built Charlottenburg Palace. "Der Grosse Stern", the central square of the Tiergarten, and the "Kurfuerstenplatz", the electoral plaza, were added, with seven and eight boulevards, respectively. This is seen as the beginning of a transformation in the Tiergarten, a movement from the king’s personal hunting territory to a forest park designed for the people.

Friedrich II did not appreciate the hunt as his predecessors did, and in 1742 he instructed the architect Georg Wenzeslaus von Knobelsdorff to tear down the fences that surrounded the territory and to turn the park into a "Lustgarten", or, loosely translated, a "pleasure garden", one that would be open to the people of Berlin. In the baroque style popular at the time he added flowerbeds, borders and espaliers in geometrical layouts, along with mazes, water basins and ornamental ponds; he also commissioned sculptures to add cultural significance. Unique to the time period, areas of congregation called "salons" were established along the many different walkways in the park. These salons were blocked off from the walking path by hedges or trees and often furnished with seating, fountains and vases, offering guests a change of pace and a place to discuss intellectual matters in private. Such freedom was common under the rule of Frederick II; there were even residents allowed to live within the Tiergarten. Refuges, Huguenots in hiding from the French, were allowed to erect tents and sell refreshments to the pedestrians walking through the park. A pheasant house was erected, which would later become the core of the Zoologischer Tiergarten, a zoo founded in 1844 that lies within the greater Tiergarten. During the year of the revolution, 1848, the park hosted another significant event, as the first assembly demanded the abolishment of the national censors.

t the end of the eighteenth century, Knobeldorff’s late-baroque form had been all but replaced by ideas for a new, scenic garden ideal. The castle park Bellevue and Rousseau Island were laid out by court gardener Justus Ehrenreich Sello in the late 1700s. It was then in 1818 that the king commissioned the help of Peter Joseph Lenné, a young man who was at the time the gardener’s assistant at Sanssouci in Potsdam. His plans involved the creation of a rural "Volkspark", or peoples park, that would also serve as a sort of Prussian national park that would help lift the spirits of those who visited. However, the King Friedrich Wihelm III rejected Lenné’s plan. Against the opposition of a hesitant bureaucracy, Lenné submitted a modified version of his concept. This plan was accepted and realized between 1833 and 1840. The park was modeled after English gardens, but Lenné made sure to pay attention to Knobelsdorff’s structures and layouts. By draining forests areas he allowed for more footpaths, roadways, and bridal paths to be laid down. Several features became characteristic components of the Tiergarten. Wide-open grass lawns traversed by streams and clusters of trees, lakes with small islands, countless bridges like the Löwenbrücke, and a multitude of pathways became distinguishing features of the new garden.

Up until 1881, the Tiergarten was owned by the monarchy, and came under the direct control of the king. Soon after the king abolished his rights to the forest, he added the boundaries to the district of Berlin, so that the people may use and uphold it. However, until the middle of the twentieth century, the Tiergarten remained in the style that Lenné had left it in. The biggest changes came in the form of nationalistic memorials that began construction in 1849. These monuments were seen as patriotic contributions to the culture of the Tiergarten. The Siegesallee, or "Victory Avenue", could be considered the most famous addition. Built under the orders of Kaiser Wilhelm II, It was lined with statues of former Prussian royal figures of varying historical importance. "Prachtboulevard", or the magnificence boulevard, was added in 1895 and became the area known as the Königsplatz, which would later become Platz der Republik.

The park is covered in statues commemorating those famous to the Prussians and the activities they enjoyed doing. Animal statues are to be found throughout the park, playing the counterpart to the stone hunters that also inhabit the area. Built by famous sculptor Friedrich Drake, a statue to Queen Louise, beloved queen of the Prussians, is also to be found here alongside her husband, Friedrich Wilhelm III. Statues of Johann Wolfgang von Goethe, Gotthold Ephraim Lessing, Heinrich Theodor Fontane, Wilhelm Richard Wagner and Gustav Albert Lortzing were also erected. The "Komponistendenkmal", or the Beethoven-Haydn-Mozart memorial, is another example of how the Germans wanted to respect and honor the men and women who gave them a unique culture.

The Nazi party took control in 1933, causing a dramatic change of idealism. This change was not just social; in fact, Hitler had planned the complete innovation of the city of Berlin. "Welthauptstadt Germania", or World Capital Germania, was the idea the Nazis wanted to bring to fruition. The Tiergarten was to be a central location in the new city. The Charlottenburger Chaussee, today known as the Straße des 17. Juni, was to be the central line between the east and west, and was widened from 27 to 53 meters, the same width as the current street. The Berlin victory column was also moved to the Grosser Stern, where it remains to this day.

The Second World War caused significant damage to the Tiergarten and its various cultural elements. Many statues were destroyed or damaged; some of the statues still need minor repair. After the war, the Tiergarten underwent a sudden, violent change. Much of the wooded area was felled and turned to firewood due to the shortage of coal, and the now empty fields were turned into temporary farmland by order of the British occupational troops in the region; there were around 2,550 plots of land available for growing potatoes and vegetables. However, these two factors caused the once great forest to nearly disappear; only 700 trees survived out of over 200,000 that once lined the parkway, the bodies of water turned silty, every bridge was destroyed, the monuments lie on their sides, badly damaged. Plans to fill the waterways with debris from the war were also suggested, but were prevented by the head of the Berlin Central Office of Environmental Planning, Reinhold Lingner.

In 1945, almost directly after the fall of Berlin, the Soviets erected a monument for the fallen soldiers of the Red Army on the north side of the current Straße des 17. Juni. Situated less than a mile away from the Reichstag, It was built in such short notice that it sat in West Berlin, which belonged to the British, Americans and French. When the wall went up around East Berlin, the monument became inaccessible to the people for whom it was built.

According to testimony reported in the 1995 documentary film On the Desperate Edge of Now, statues of historical military figures from the park were buried by Berlin citizens in the grounds of the nearby Bellevue Palace in order to prevent their destruction by the occupying American forces. They were not recovered until 1993.

On June 2, 1945, the Berlin Magistrate decided they would restore the Greater Tiergarten. The first suggestions came in 1946/47. Reinhold Lingner and Georg Pniower, Professor of Garden Design at Berlin University, were the first to offer plans, but both were rejected during the division of Berlin by the Allied powers. Instead, they decided to follow the plans of the Tiergarten Director Willi Alverdes, whose plan seemed to be a more pragmatic approach; instead of rebuilding the park in a new fashion, Alverdes plans depended on the existing design of the park. He wanted to establish a tranquil, spacious park where one could relax and recover. Being called a crisis, the Tiergarten was reforested between 1949 and 1959. On March 17, 1949, the Lord Mayor Ernst Reuter planted the first tree, a linden, to signify the beginning of the restoration. West Germany took over the operation and sponsorship; about 250,000 young trees were delivered to the former capital form all over the Bundesrepublik, even being delivered via plane during the Berlin Blockade. Alverdes’ concept did away with the pre-existing baroque-styled structures in the park, claiming the style was not in keeping with the period. The combination of baroque and regional art was tossed out. Being a very natural park landscape, the Tiergarten was a very important area for rest and relaxation for the West Berliners, who were separated from their homeland by the Berlin Wall.

Several buildings have been added to the area surrounding the park, many of which were constructed by foreign architects. The Kongresshalle is a prime example. It began construction in 1956 under the initiative of Eleanor Dulles as an American contribution to the Interbau, an International Architecture Exhibition employed to exhibit new social, cultural, and ecological ideas in architecture.

The Tiergarten’s culture began to stagnate until the fall of the Berlin Wall and the GDR in 1989. After the reunification of East and West Berlin in 1990, many of the outskirts of the park changed drastically. For instance, along the streets that border the southern boundary of the park, dilapidated embassy buildings that had stood for decades were reoccupied and others were rebuilt from the ground up, such as the Nordic embassies. On the northern border the new German Chancellery was built, along with office buildings for the everyday work of the delegates. The Reichstag was refurbished with a new, glass dome that has become a popular tourist attraction. Several overgrown areas that had been used for picnics and soccer were replaced with open spaces and grassy lawns that have added to the prestige of the park. Due to its status as a garden memorial of the city of Berlin, encroachment onto the Tiergarten from businesses and residents has been illegal since 1991.

A large tunnel has been built under the Tiergarten, allowing easy movement from north to south for motor vehicles, streetcars, and, more recently, subway trains. The original proposal for the tunnel was met with great opposition from environmentalists, who believed the vegetation would be damaged due to shifts in ground-water levels; in fact, the first plans for construction were denied by a court order.

In the northerly neighbouring quarter of Moabit a much smaller park bears the same name, thus both are differentiated as Großer and Kleiner Tiergarten.

Tiergarten has around 210 Hectares and after Tempelhofer Freiheit, it is the second biggest parkland in Berlin and the third biggest inner-city parkland in Germany.

The park is located on the northern and central side of Tiergarten Ortsteil and is bordered, on the northern side, by the river Spree. The little quarter Hansaviertel borders on it at the north-western side and the Zoological Garden is situated on the south-western side. The principal road is the Straße des 17. Juni which ends, in the east, at the Brandenburg Gate. Other main roads are the Altonaer Straße, Spreeweg and Hofjägerallee. In the middle of the park is the square named Großer Stern ("Great Star") with the Siegessäule (Victory column) located in its centre. In addition to the Brandenburg Gate, other notable buildings and structures located close to the park are the Soviet War Memorial, the Reichstag, the Bundestag (all in the eastern borders), the new central railway station (in the north) and, on the southeastern borders, the Memorial to the Murdered Jews of Europe, the Memorial to the Sinti and Roma victims of National Socialism and the central square of Potsdamer Platz.

The park is principally served by the S-Bahn at the rail stops of Berlin Tiergarten (situated at the western entrance on the Straße des 17. Juni) and Berlin Bellevue.