OBX

OBX may refer to:


 * OBX Index, the benchmark index of the Oslo Stock Exchange
 * Outer Banks, a stretch of North Carolina coastline
 * Outer Banks (TV series), an action-adventure TV series set on the North Carolina coast
 * Oberheim OB-X, a polyphonic analog synthesizer
 * OBX, IATA airport code of Obo Airport (Papua New Guinea)