English: An overhead view of the Sant Hall of Oceans at the Smithsonian Museum of Natural History in Washington, D.C., USA.

The Sant Hall of Oceans is the largest exhibit space in the museum, with 674 specimens and models in a 23,000-square-foot (2,136 sq. m) exhibition space. The hall features a replica of a 45-foot (13.7 m) long North Atlantic right whale and two preserved giant squid (one an adult, one a juvenile).

The hall is named for Victoria and Roger Sant of Washington, D.C., who donated $15 million to create and endow the hall. It opened in 2008. The exhibits, displays, videos, and signage in the hall was created in partnership with the U.S. National Oceanic and Atmospheric Administration (NOAA) to show the ocean as a global system.