Boevange-sur-Attert (, ; ; ) is a small town in central Luxembourg, in the canton of Mersch. It is situated on the river Attert. It had a population of 1,118 as of 2025.

Until 31 December 2017, it was a commune. On 1 January 2018, the commune was merged with Tuntange to form the new commune of Helperknapp.

Former commune The former commune consisted of the villages:

Bill Boevange-sur-Attert Brouch Buschdorf Grevenknapp Fënsterdall Openthalt Brichermillen (lieu-dit) Fënsterdallerhéicht (lieu-dit) Helperknapp (lieu-dit)

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