Basse-Terre (, bæss-TAIR; French: [bɑstɛʁ] ; Guadeloupean Creole: Bastè, [bastɛ]) is a commune in the French overseas department of Guadeloupe, in the Lesser Antilles. It is also the prefecture (capital city) of Guadeloupe. The city of Basse-Terre is located on Basse-Terre Island, the western half of Guadeloupe.

Although it is the administrative capital, Basse-Terre is only the second-largest city in Guadeloupe, behind Pointe-à-Pitre. Together with its urban area, it had 44,864 inhabitants in 2012 (11,534 of whom lived in the city of Basse-Terre proper).