Upset may refer to:
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Upset (band), an American rock band
*
Upset (competition)
An upset occurs in a competition, frequently in electoral politics or sports, when the party popularly expected to win (the "favorite"), either loses to or draws/ties a game with an underdog whom the majority expects to lose, defying the convent ...
, where a likely winner loses
*
"Upset" (''Hit the Floor''), an episode of the television series ''Hit the Floor''
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Upset (horse), a racehorse
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Upset (wastewater treatment)
Secondary treatment is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the int ...
, temporarily decreased effluent quality
*
Aircraft upset, a dangerous aviation condition
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Upper set
In mathematics, an upper set (also called an upward closed set, an upset, or an isotone set in ''X'') of a partially ordered set (X, \leq) is a subset S \subseteq X with the following property: if ''s'' is in ''S'' and if ''x'' in ''X'' is larger ...
, in mathematics
*
UpSet Plot
UpSet plots are a data visualization method for showing set data with more than three intersecting sets.
UpSet shows intersections in a matrix, with the rows of the matrix corresponding to the sets, and the columns to the intersections between t ...
, in data visualization
*
Upset forging, a forging process where a workpiece's diameter is increased by compressing its length.
* Upset, a type of fault in wood, see
Shakes (timber) ยง Thunder shake or upset
{{disambiguation