| Image Coa: | Wappen arnsdorf dresden.png |
| Coordinates: | 51.1°N 71°W |
| Image Plan: | Arnsdorf in BZ.svg |
| State: | Sachsen |
| District: | Bautzen |
| Elevation: | 290 |
| Area: | 35.80 |
| Postal Code: | 01477 |
| Area Code: | 035200 |
| Licence: | BZ, BIW, HY, KM |
| Gemeindeschlüssel: | 14625010 |
| Divisions: | 4 |
| Website: | www.gemeinde-arnsdorf.de |
| Mayor: | Frank Eisold[1] |
| Leader Term: | 2020 - 27 |
| Party: | CDU |
Arnsdorf (Upper Sorbian: Warnoćicy) is a municipality in the district of Bautzen in the state of Saxony, in eastern Germany.
Arnsdorf bei Dresden railway station is located in the southern part of the village and is part of the Görlitz–Dresden railway and Kamenz–Pirna railway lines.