Reisdorf (Luxembourgish: Reisduerf) is a commune and small town in eastern Luxembourg, on the river Sauer. It is part of the canton of Diekirch.

Reisdorf Reisduerf
Commune
Reisdorf seen from the north
Coat of arms
Map of Luxembourg with Reisdorf highlighted in orange, and the canton in dark red
Coordinates: 49°52′00″N 6°16′00″E / 49.8667°N 6.2667°E / 49.8667; 6.2667
Country	Luxembourg
Canton	Diekirch
Area
• Total	14.84 km2 (5.73 sq mi)
• Rank	80th of 100
Highest elevation	406 m (1,332 ft)
• Rank	44th of 100
Lowest elevation	175 m (574 ft)
• Rank	15th of 100
Population  (2023)
• Total	1,353
• Rank	96th of 100
• Density	91/km2 (240/sq mi)
• Rank	70th of 100
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
LAU 2	LU0000608
Website	reisdorf.lu

In 2024, the town of Reisdorf itself, which lies in the centre of the commune, had a population of 708.^[1] Other towns within the commune include Bigelbach, Hoesdorf, and Wallendorf-Pont. It’s also the starting point of a branch of the River Sûre.