Change of gauge (disambiguation)

Change of gauge is the process of converting a railway from one rail gauge to another.

Change of gauge or gauge change may also refer to:
 * Change of gauge (aviation), change of aircraft without changing the flight number
 * Break-of-gauge a location where two railroad lines of different gauge meet
 * Bogie exchange, a system for operating railway wagons on two or more gauges by switching bogies
 * Variable gauge, a system using adjustable wheel sets where the gauge is altered by driving the train through a gauge changer
 * Dual gauge, the use of additional rails are laid to accommodate two different gauges on the same track
 * Track gauge conversion, replacing a railway track of one track gauge with a railway track of another track gauge