Jordanoff Bay (Bulgarian: Йорданов залив, ‘Yordanov Zaliv’ \yor-da-'nov 'za-liv\) is the 5 km wide bay indenting for 4.9 km Davis Coast in Graham Land on the Antarctic Peninsula. Entered between Wennersgaard Point and Tarakchiev Point.
The bay is named for the Bulgarian-American pioneer of aviation Assen Jordanoff (1896–1967) who built the first Bulgarian engine-powered airplane in 1915 and took part in the construction of B-17 Flying Fortress and other US planes.
Jordanoff Bay is located at . German-British mapping in 1996.
This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.