Spiennes (French pronunciation: [spjɛn]; Walloon: Spiene) is a sub-municipality of the city of Mons located in the province of Hainaut, Wallonia, Belgium.

On 1 January 1977, it was merged into Mons.

[1] The locality is well known for its neolithic flint mines,[2] which are on the list of UNESCO World Heritage Sites since 2000.

[1]This Hainaut Province location article is a stub.

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