Gypsophila (Commonly known as Baby's-breath in the United States; elsewhere Gypsophila [1] ) is a genus of about 100 species of flowering plants in the family Caryophyllaceae, native to Europe, Asia and north Africa. Many species are found on calcium-rich soils, including gypsum, whence the name of the genus. Some species are also sometimes called "baby's breath" or simply, "Gyp", among the floral industry. Its botanical name means "lover of chalk", which is accurate in describing the type of soil in which this plant grows.

They are herbaceous annual and perennial plants growing to 5-120 cm tall. The leaves are opposite, linear to narrow triangular, often falcate (sickle-shaped), 1-7 cm long and 2-8 mm broad. The flowers are produced in large inflorescences, which may be either dense or open and lax; each flower is small, 3-10 mm diameter, with five white or pink petals.