GCH

GCH may refer to:

• The Generalized Continuum Hypothesis in mathematics (Set Theory)
• Knight Grand Cross of the Royal Guelphic Order
• Gas central heating
• Gym Class Heroes
• Greater China Fund, a mutual fund which invests in China companies traded on the Chinese Exchange
• Grey Coat Hospital, a secondary school in London, UK
• .GCH, a file extension used by GCC for precompiled header files
• Golf- en country Club Heiloo