Tiyin
{{Short description|Subdivision of the Uzbekistani sum}}
{{Infobox coin
| Denomination = Tiyin
| Country = Uzbekistan
| Value = 0.01
| Unit = Uzbekistani soum
| Mass = 1.75
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| Diameter = 16.9
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| Thickness = 1.2
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| Edge = Smooth
| Composition = Brass-plated steel
| Years of Minting = {{Start date|1994}}
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Tiyin (Cyrillic "тийин") is a unit of currency of Uzbekistan, equal to {{frac|100}} of a sum. The tiyin was also the name of a subunit of the Kazakhstani tenge until 1995.
The Uzbek tiyin is the world's lowest value coin that was still legal tender until March 1st 2020, although in practice it was rarely found in circulation.[https://www.bbc.co.uk/news/magazine-21572359 The most worthless coin in the world] - BBC News, 26 February 2013 As of 2024, it takes 1,000 of them to equal just one penny in the United States.{{cite web | title = What’s the World's Least Valuable Coin? |url=https://www.pcgs.com/news/what-is-the-least-valuable-coin#:~:text=These%20coins%20are%20still%20legal,the%20Uzbekistan%201994%20tiyin%20coins. | publisher=What’s the World's Least Valuable Coin? | work=PCGS | accessdate=16 August 2024}}