The 9th constituency of the Hauts-de-Seine is a French legislative constituency in the Hauts-de-Seine département.

Hauts-de-Seine's 9th constituency is entirely composed of the town of Boulogne-Billancourt which lies just west of Paris and forms an exclusive and wealthy suburb.

The constituency elected conservative deputies throughout its history until 2022.

At the 2012 Thierry Solère a municipal councillor stood against the official UMP candidate Claude Guéant and won by a margin of less than 400 votes.

Solère re-joined the UMP in 2013.