Hx

HX, Hx, Hx, or hx may refer to:

HXMM01, known more formally as 1HERMES S250 J022016.5−060143, is a starburst galaxy located in the northwestern portion of the constellation Cetus.

Daniel Pollard (born August 23, 1983), more commonly known by his stage name HXV (Heroes x Villains), is an American music producer.

HxD is a hex editor, disk editor, and memory editor developed by Maël Hörz for Windows. It can open files larger than 4 GiB and open and edit the raw contents of disk drives, as well as display and edit the memory used by running processes.

Air Test and Evaluation Squadron TWO ONE (HX-21) "Blackjack" is a U.S. Navy aircraft squadron located at Naval Air Station Patuxent River, Maryland on the Chesapeake Bay.

The HX postcode area, also known as the Halifax postcode area, is a group of seven postcode districts in England, which are subdivisions of four post towns.

The HX convoys were a series of North Atlantic convoys which ran during the Battle of the Atlantic in the Second World War.

X-rays make up X-radiation, a form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3×1016 Hz to 3×1019 Hz) and energies in the range 100 eV to 100 keV.