The 8th constituency of the Seine-Maritime (French: Huitième circonscription de la Seine-Maritime) is a French legislative constituency in the Seine-Maritime département.

Like the other 576 French constituencies, it elects one MP using the two-round system, with a run-off if no candidate receives over 50% of the vote in the first round.

The 8th Constituency of the Seine-Maritime covers Le Havre as well as Gonfreville-l'Orcher which was added as a result of the 2010 redistricting of French legislative constituencies.

The seat has historically been a stronghold of the French Communist Party, 2012 is the only recent election in which another party won, in this case the Socialist Party.

[1] [5] * Withdrew before the 2nd round.