| Powertype: | Steam |
| Ѵ (Izhitsa) class steam locomotive | |
| Builddate: | 1908—1918, 1927—1931 |
| Whytetype: | 0-8-0 |
| Uicclass: | D h2 |
| Driverdiameter: | 1.22- |
| Length: | 10.085- |
| Axleload: | 16t |
| Locoweight: | 64.3- |
| Fueltype: | Coal |
| Boilerpressure: | 12- |
| Firearea: | 3.03- |
| Tubesandflues: | 163.4- |
| Superheaterarea: | 40.3- |
| Cylindercount: | Two, outside |
| Cylindersize: | 575x |
| Maxspeed: | 550NaN0 |
| Operatorclass: | Ѵ |
The Russian steam locomotive class Izhitsa (Ѵ) was a steam locomotive produced in Russia and the Soviet Union between 1908 and 1918, and between 1927 and 1931. The Russian letter Ѵ can be transliterated as Hy. On Russian and Soviet railways, these were the most powerful steam locomotives of type 0-8-0. They were designed by E. E. Noltein and had a 16-ton axle load.[1]
The Russian locomotive class Y (Ы) was similar but had a 15-ton axle load. In the period 1909–1916, 350 class Y (Ы) locomotives were built.