Matoury is a commune of French Guiana, an overseas region and department of France located in South America. Matoury is a souther…Matoury is a commune of French Guiana, an overseas region and department of France located in South America. Matoury is a southern suburb of Cayenne, the préfecture and largest city of French Guiana. Cayenne – Félix Eboué Airport, the main international airport of French Guiana, is located in the commune of Matoury.