The 2012 Moselle Open was a men's tennis tournament played on indoor hard courts.

It was the tenth edition of the Moselle Open, and part of the ATP World Tour 250 series of the 2012 ATP World Tour.

Jo-Wilfried Tsonga won the singles title.

First-seeded Jo-Wilfried Tsonga won the singles title.

The following players received wild cards into the singles main draw: The following players received entry from the singles qualifying draw: The following players received entry as lucky losers: The following pairs received wildcards into the doubles main draw: Jo-Wilfried Tsonga defeated Andreas Seppi, 6–1, 6–2 Nicolas Mahut / Édouard Roger-Vasselin defeated Johan Brunström / Frederik Nielsen, 7–6(3), 6–4