Port-Margot (French pronunciation: [pɔʁ maʁɡo]; Haitian Creole: Pò Mago) is a commune in the Borgne Arrondissement, in the Nord department of Haiti. It has 36,937 inhabitants.

The commune consists of six communal sections, namely:

• Grande Plaine, rural
• Bas Petit Borgne, urban (town of Port-Margot) and rural
• Corail, rural
• Haut Petit Borgne, rural
• Bas Quartier, urban (Bayeux neighborhood) and rural
• Bras Gauche, urban (Petit Bourg de Port-Margot neighborhood) and rural