Petit-Bourg (French pronunciation: [pəti buʁ]; Guadeloupean Creole: Tibou, Ti Bou) is the seventh-largest commune in the French overseas department of Guadeloupe.

It is located on the east side of the island of Basse-Terre, and is part of the metropolitan area of Pointe-à-Pitre, the largest metropolitan area in Guadeloupe.

It has many tourist attractions: the Cascade aux Ecrevisse (waterfall), the National Park of Guadeloupe, the Saut de la Lézarde (waterfall), as well as the Kassaverie (cassava/manioc factory) located downtown.

The average annual rainfall is 2,732.3 mm (107.57 in) with October as the wettest month.

The temperatures are highest on average in August, at around 26.7 °C (80.1 °F), and lowest in February, at around 23.5 °C (74.3 °F).