The 4th constituency of the Pyrénées-Atlantiques (French: Quatrième circonscription des Pyrénées-Atlantiques) is a French legislative constituency in Pyrénées-Atlantiques 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.

It includes the communes of Lourdios-Ichère, Oloron-Sainte-Marie and is currently represented by Iñaki Echaniz of the PS.

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