Swanke Hayden Connell Architects was an international architecture, interiors and historic preservation firm with U.S. headquarters in New York City.

Originally known as Walker & Gillette, the firm designed country estates and urban townhouses for some of New York's more affluent families.

The firm practiced under the name of Walker & Poor from 1946 to 1952 with commissions that included Sotheby Parke Bernet Galleries, Chemical Bank, Morgan Stanley & Co. Inc., Grumman Aircraft Engineering Corporation and NATO air bases in France.

During this time, the firm expanded its disciplines and became a global practice, opening offices in Miami and London in 1987, Istanbul in 1997, Sheffield 2002, Moscow in 2006, and Shanghai in 2010.

[6] On January 6, 2015 the firm filed for Chapter 11 bankruptcy, after failing to receive over US $2 million in fees from a client.