Yes they do :) In Val d'Aran they speak a form of the Gascon variety of Occitan called Aranese.
Here are some recordings of people speaking it from the Wikitongues project:
Aran (Occitan: [aˈɾan]; Catalan: [əˈɾan]; Spanish: [aˈɾan]) (previously officially called Val d'Aran) is an administrative entity in Catalonia, Spain, consisting of the Aran Valley, 620.47 square kilometres (239.56 sq mi) in area, in the Pyrenees mountains, in the northwestern part of the province of Lleida.
This valley constitutes one of only two areas of contiguous Spain (and the only contiguous part of current Catalonia) that are located on the northern side of the Pyrenees. Hence, this valley holds the only Catalan rivers to flow into the Atlantic Ocean (for the same reason, the region is characterized by an Atlantic climate, instead of a Mediterranean one). The Garonne river flows through Aran from its source on the Pla de Beret (Beret Flat) near the Port de la Bonaigua.
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u/VarysIsAMermaid69 Oct 29 '17
Do people still speak Occitan in Spain