In vexillology, the canton is a rectangular emblem at the top left of a flag. The canton can also be a flag itself. For example, Australia has the Union Jack as their canton.

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  The flag of Australia features the Union Flag as a canton.
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  The flag of Chile incorporates a blue canton bearing a white five-pointed star.
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  The flag of Fiji has a canton of the Union Flag.
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  The flag of Greece has a blue canton with a white Greek cross.
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  The flag of Liberia has a blue canton with a white five-pointed star.
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  The flag of Malaysia has a canton with a crescent and 14-pointed star in yellow on a blue field.
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  The flag of New Zealand has a Union Flag canton.
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  The flag of Samoa has a blue canton which shows the Southern Cross constellation in white.
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  The flag of the Republic of China (Taiwan) has a navy blue canton bearing a white sun with 12 triangular rays. (This flag's canton is also used as the Taiwanese naval jack and the Kuomintang's party flag.)
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  The flag of Togo has a red canton bearing a white five-pointed star.
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  The flag of Tonga has a white canton bearing a red Greek cross couped.
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  The flag of Tuvalu features the Union Flag in its canton.
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  The flag of the United States has 50 white five-pointed stars on a blue canton (a.k.a. union), standing for the country's 50 states (This flag's canton is also used as United States Naval Jack/Jack of the United States).
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  The flag of Uruguay has a white canton charged with the Sun of May.

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