H-block

H-block or h-block may refer to:

• Maze (HM Prison), Belfast, where the prison blocks were built to a uniform H-shaped plan
  • Anti H-Block, 1981 Irish Republican election label
  • H Block, a compilation album by various Irish folk artists
• H Block (Hong Kong), a 1970s block design in Hong Kong
• H engine, an internal combustion engine having the cylinders in an H pattern
• H-block in aggressive inline skating, part of the frame of the skate
• The 1915–1920 and 1995–2000 MHz radio frequency bands, used for wireless broadband communications; see Template:Slink

See also

• H-Blockx, German hardcore punk band