Jean-Baptiste Jules Trayer (1824 – 1909) was a French painter.
He was taught by his father who was a landscape painter and by Justin Lequien at the Académie Suisse in Paris.
He specialized as a "genre" painter, particularly depicting scenes in Brittany.
[1] Trayor executed a lithograph depicting a portrait of Charles Lagrange the politician.
This lithograph can be seen in the Musée national du château de Compiègne.