Calibrachoa is a genus of plants in the Solanaceae (nightshade) family. They are weak evergreen perennials with a sprawling habit, and they have small petunia-type flowers.

Calibrachoa are closely related to the petunia. However on further examination it has been found that there are major differences in chromosomes and breeding behaviour between Calibrachoa and petunias. The name Calibrachoa comes from Antonio de Caly Bracho, who was a Mexican professor of pharmacy.