The Bowery Amphitheatre was a building in the Bowery neighborhood of New York City. It was located at 37 and 39 Bowery, across the street from the Bowery Theatre. Under a number of different names and managers, the structure served as a circus, menagerie, theatre, a roller rink, and a branch of the Peniel Mission. The site is now part of Confucius Plaza.
A group of New York businessmen known as the Zoological Institute or the Flatfoots built the structure in 1833 as the site for a menagerie and circus performances. In 1835, the site was converted into an amphitheatre with a stage and a circus ring, and the name changed to the Bowery Amphitheatre. June, Titus, Angevine & Co. took up residence with their equestrian show.
The owners changed the name again in November 1842 to the Amphitheatre of the Republic. John Tryon leased the building the following year, remaining its operator until 1848. Following a performance by the Virginia Minstrels on 6 February 1843, Tryon gave the structure over largely to minstrel shows, renaming it the New Knickerbocker Theatre in 1844.
In 1849, the building once again became a menagerie, this time under the management of June & Titus. The new endeavor failed to perform up to expectations, so in 1851 the amphitheatre became a circus instead. Seth B. Howe's circus company became a standard feature. During the 1852-1853 season, regular acts included the Richard Sands & Co. and John J. Nathans & Co. circuses. The next season saw a return to equestrian exhibitions under the management of Henry P. Madigan and Den W. Stone.
During the summer of 1854, Germans Seigrist and Otto Hoym leased the amphitheatre and rebuilt it. It opened on 20 October 1854 as the Stadt Theater. The Stadt specialized in German-language fare, but it also staged American and English drama. A succession of managers sustained this mixture until the 1863-1864 season, when the Stadt Theater moved to 45 Bowery, where it remained for 8 years, before returning to its original location. Adolf Neuendorff directed the Stadt from 1863 to 1867. In 1871 it was the venue for the first U.S. performance of Richard Wagner's opera Lohengrin.