390 Fifth Avenue, also known as the Gorham Building, is an Italian Renaissance Revival palazzo-style building at Fifth Avenue and West 36th Street in the Midtown Manhattan neighborhood of New York City, New York, United States. It was designed by McKim, Mead & White, with Stanford White as the partner in charge, and built in 1904–1906. The building was named for the Gorham Manufacturing Company, a major manufacturer of sterling and silverplate, and was a successor to the former Gorham Manufacturing Company Building at 889 Broadway. The building features bronze ornamentation and a copper cornice.

390 Fifth Avenue was occupied by the Gorham Manufacturing Company between 1905 and 1923. It was then home to Russeks department store from 1924 to 1959, and then Spear Securities from 1960, who changed the street level facade. It was designated a New York City landmark in 1998, after the lower floors were significantly altered from their original design.

390 Fifth Avenue, also known as the Gorham Building, is in the South Midtown neighborhood of Manhattan in New York City, New York, United States, on the southwestern corner of Fifth Avenue and 36th Street. The land lot is slightly L-shaped and covers 12,575 square feet (1,168.3 m²). The main building measures 67 feet (20 m) on Fifth Avenue and 167 feet (51 m) along 36th Street. An annex, about 12 feet (3.7 m) wide with a similar facade to the original construction, is west of the main building. Nearby buildings include The Langham, New York hotel and 404 Fifth Avenue one block north; 200 Madison Avenue to the east; the B. Altman and Company Building to the southeast; and the Tiffany & Company Building to the northeast.

Before the Gorham Building was completed, the site had been occupied by the Hotel Shelburn, which by 1902 was called the Hotel Lenox. William Waldorf Astor had acquired the site in 1890. The residential core of Manhattan relocated north from lower Manhattan during the late 19th century. At the beginning of the 20th century, development was centered on Fifth Avenue north of 34th Street, where new department store buildings were quickly replacing the street's brownstones. One of the first new store buildings in the area was the B. Altman and Company Building, which opened in 1906. Other department stores such as Lord & Taylor, as well as specialty stores such as Tiffany & Co. and the Gorham Manufacturing Company, relocated during the 1900s and 1910s. The Gorham, Tiffany, Charles Scribner's Sons, Coty, and Demarest buildings are among the few surviving stores that were erected for smaller retailers on Fifth Avenue during the early 20th century.

390 Fifth Avenue is an eight-story building designed by McKim, Mead & White in an early Italian Renaissance Revival style. In his notes, Stanford White of McKim, Mead & White said he wanted both the facade and the store's interior to exhibit "a feeling of elegance and simplicity". A variety of Renaissance inspirations were used in the design. The bronze ornamentation for the facade and interior was designed by White and manufactured by Gorham.

Along the eastern elevation on Fifth Avenue and the northern elevation on 36th Street, the facade is clad with yellowish-white Bedford limestone. These elevations are divided into three tiers, which are separated by horizontal string courses. The base comprises the first and second stories; the midsection comprises the third through sixth stories; and the loggia-like attic section comprises the seventh and eighth stories. The northeast corner is slightly rounded, similar to that of the Judge Building. The elevations to the south and west, which face other buildings, are made of brick. As built, the Gorham Building was much taller than surrounding structures.

There is an annex on 36th Street, which is the same height as the original building. The base is composed of a storefront, topped by three sets of sash windows, corresponding to the height of the base in the original building. The remaining stories are composed of six pairs of windows, one on each level. The ground-level arcade and attic loggia do not stretch around to the annex. The top of the facade contains a parapet below the original cornice.

The entirety of the base originally had a double-height arcade running along it. The arches were supported at ground level by Ionic columns, which are made of gold-flaked Massachusetts granite. Bas-reliefs, removed by 1936, were placed in the spandrels at the top of the arcade. Andrew O'Connor sculpted the reliefs, which were made of bronze and depicted art and industry. There were three arches on the Fifth Avenue side and seven arches on the 36th Street side. There was a bronze frieze above the first floor.