Saeul (Luxembourgish: Sëll [ˈzəl]) is a commune and small town in western Luxembourg, in the canton of Redange. With a population of 983 as of 2023, it is the least populous commune in Luxembourg.

Saeul Sëll
Commune
The remarkable oak
Coat of arms
Map of Luxembourg with Saeul highlighted in orange, and the canton in dark red
Coordinates: 49°43′37″N 5°59′08″E / 49.72694°N 5.98556°E / 49.72694; 5.98556
Country	Luxembourg
Canton	Redange
Area
• Total	14.86 km2 (5.74 sq mi)
• Rank	78th of 100
Highest elevation	382 m (1,253 ft)
• Rank	68th of 100
Lowest elevation	254 m (833 ft)
• Rank	57th of 100
Population  (2023)
• Total	983
• Rank	102nd of 100
• Density	66/km2 (170/sq mi)
• Rank	88th of 100
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
LAU 2	LU0000707
Website	saeul.lu

As of 2024^[update], the town of Saeul itself, which lies in the south-east of the commune, has a population of 524.^[1]