Veronica angustifolia is a botanical synonym of five species of plant:
Veronica austriaca, synonym published in 1806 by Johann Jakob Bernhardi Veronica ligustrifolia, synonym published in 1838 by Allan Cunningham Veronica linariifolia, synonym published in 1821 by Johann Heinrich Friedrich Link Veronica scutellata, synonym published in 1822 by Samuel Frederick Gray Veronica stenophylla, synonym published in 1832 by Achille Richard