Sanchezia is a genus of the plant family Acanthaceae. It is estimated to contain about 20 to 50 species. Members of this genus are shrubs, rarely small trees or herbs, occurring in the lowlands of tropical South and Central America. A close relative is Suessenguthia, which looks quite similar.Because they have large, colorful bracts and flowers, and sometimes even colorful leaves, several species are cultivated as ornamental plants throughout the tropics and in botanical gardens of temperate areas. Examples for species well known from cultivation are S. nobilis, S. parvibracteata and S. speciosa. In some areas, ornamental species have become problematic as invasive weeds. On the other hand, S. lampra from Ecuador is almost extinct.
Sanchezia is named for José Sanchez, a nineteenth-century professor of botany at Cadiz, Spain.