Recent studies of fifth century BC material from Brittany have demonstrated that the far west of the continent was fully in touch with contemporary stylistic fashions in art. Three types of material are considered here: pottery, based on the study of the stamped decoration recovered from the Pouilladou settlement at Prat; metal, represented by the knive from Kernavest in Quiberon (Morbihan) and the helmet from Tronoën at Saint-Jean-Trolimon (Finistère); and stone, consisting of the series of steles or grave-markers, notably the examples decorated with geometric and cunvilinear designs (Pont-l'Abbé and Melgven, Finistère). Shared characteristics have been identified, notably the use of similar motifs on the three main classes of material (pottery, metal and stone) and the organisation of decorative schemes, especially those comprising the repeated juxtaposition of designs set out in horizontal registers. Whilst this particular lay-out of the decorative motifs seems to be a novel feature restricted to the west of France, the individual motifs themselves seem for the most part to be shared with a number of other regions within the Celtic world. A consideration of the decorative style of Brittany in the Vth century BC reveals evidence for economic and ideological exchanges with the rest of Celtic Europe and, albeit in a less clear-cut fashion, with the Mediterranean world. The latter linkage is apparent, for example, in the borrowings from architecture in Magna Graecia visible on the stele from Melgven (Finistère).