The Hack Circle or Hack was a nickname given to an amphitheatre in central Christchurch, New Zealand. It was built as part of the second phase of developing a pedestrian mall in the central city in 1989 and was officially opened on 6 December of that same year by then mayor Vicki Buck. For a time it was a popular Hacky Sack venue (hence the name), later it became a popular hang out for "black-dressed emos, goths, heavy metal fans and United States style gangstas".