2-2-2 locomotives

first locomotive in Germany

class of British 4-2-2 locomotives

thumb|Replica of Adler at Fürth, May 2008 Under the Whyte notation for the classification of steam locomotives, 2-2-2 represents the wheel arrangement of two leading wheels on one axle, two powered driving wheels on one axle, and two trailing wheels on one axle. The wheel arrangement both provided more stability and enabled a larger firebox than the earlier 0-2-2 and 2-2-0 types. This wheel arrangement is sometimes described as a Single, although this name could be used to describe any kind of locomotive with a single pair of driving wheels.

class of 62 British broad-gauge 2-2-2 locomotives

first steam locomotive manufactured in Belgium

Early steam locomotive of the Netherlands

class of 50 Austro-Hungarian (later Italian) 2-2-2 (later 2-4-0) locomotives

class of 12 British broad-gauge 2-2-2 locomotives

2-2-2 locomotive type designed by Robert Stephenson and Company