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| Location | Niigata |
|---|---|
| Launched | April 24, 2011 |
| Currency | Japanese yen (¥20,000 maximum load) |
| Validity | |
| Website | niigata-kotsu |

Ryuto (りゅーと, Ryūto) is a rechargeable contactless smart card ticketing system for public transport in Niigata, Japan, introduced by Niigata Kotsu.
As of 2024[update], the card is usable on most of the bus lines operated by Niigata Kotsu. The card cannot be used on JR lines.