GCH

GCH may refer to: gch can be:
 * Gachsaran Airport, in Iran
 * Garelochhead railway station, in Scotland
 * Generalized continuum hypothesis, in mathematical set theory
 * Gold Coast University Hospital, in Australia
 * Grand Cross of the Order of Princely Heritage
 * Grey Coat Hospital, a secondary school in London
 * GTP cyclohydrolase I, an enzyme
 * Gym Class Heroes, an American band
 * Knight Grand Cross of the Royal Guelphic Order
 * The file extension for a precompiled header file by gcc