Class S may refer to:
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Class S (culture), early 20th century Japanese social practice of female romantic friendships, and a literary genre depicting this practice
* Class S, a
stellar classification for carbon stars
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Baltimore and Ohio class S
Baltimore and Ohio Class S comprised three classes of 2-10-2 locomotives.
The S class proper were 31 locomotives built in 1914 by Baldwin Locomotive Works and numbered 6000–6030. The S-1 class comprised 50 locomotives numbered 6100–6149, an ...
, American steam locomotives
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BNCR Class S, Irish steam locomotive
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GNRI Class S, Irish steam locomotive
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South African Class S 0-8-0, steam locomotives
See also
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Type S (disambiguation)
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S class (disambiguation) S class may refer to:
Automobiles
* Mercedes-Benz S-Class, an automobile
* S-segment, a European vehicle size class
Rail transport
* Victorian Railways S class, Australian steam locomotives
* Victorian Railways S class (diesel), Australian diesel ...
*
S-Type (disambiguation)
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