Rostanh or Rostaing Berenguier de Marselha was an early fourteenth-century troubadour and Hospitaller from Marseille.
He was a friend of the Grand Master Folco del Vilaret.
The earliest biographical notice we have about Rostanh is the brief but unreliable biography in Jean de Nostredame.
[1] Rostanh composed only one: La dousa paria.
His songs are preserved in the manuscript called "Giraud", where the first one is a long canso in honour of his patron Folco.