Křetínka
The Křetínka is a river in the Czech Republic, a right tributary of the Svitava River. It flows through the South Moravian and Pardubice regions. It is long.
Etymology
The river is named after the village of Křetín, located in the middle course of the river.Characteristic
The Křetínka originates in the territory of Radiměř in the Svitavy Uplands at an elevation of and flows to Letovice, where it enters the Svitava River at an elevation of. It is long. Its drainage basin has an area of. The average discharge near the mouth is m3/s.The longest tributaries of the Křetínka are:
| Tributary | Length | Side |
| Zlatý potok | 8.4 | right |
| Rohozenský potok | 7.2 | left |