Fröndenberg
| Fröndenberg   | |
|---|---|
| Location of Fröndenberg   within Unna   district | |
| Coordinates: 51°28′19″N 7°45′57″E / 51.47194°N 7.76583°E | |
| Country | Germany | 
| State | North Rhine-Westphalia | 
| Admin. region | Arnsberg | 
| District | Unna | 
| Government | |
| • Mayor (2020–25) | Sabina Müller (SPD) | 
| Area | |
|  • Total | 56.23 km2 (21.71 sq mi) | 
| Elevation | 181 m (594 ft) | 
| Population  (2023-12-31) | |
|  • Total | 20,531 | 
| • Density | 370/km2 (950/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| Postal codes | 58730 | 
| Dialling codes | 02373, 02303, 02377, 02378 | 
| Vehicle registration | UN | 
| Website | www.froendenberg.de | 
Fröndenberg (German pronunciation: [ˈfʁœndn̩ˌbɛʁk] ⓘ; Westphalian: Frönnenbiärg) is a town in the district of Unna, in North Rhine-Westphalia, Germany.