During preparation of the taxonomic treatment of Plantaginaceae for the Flora Argentina project, several names were identified as needing typification to stabilize their nomenclature. As a result, lectotypes are designated for the following 13 names: Angelonia evitae Descole & Borsini, A. gardneri Hook., A. hassleriana Chodat, A. integerrima Spreng., A. salicariifolia Bonpl., Ourisia pratioides Diels, O. pygmaea Phil., Sibthorpia conspicua Diels, S. nectarifera Wedd., Veronica lepida Phil., V. peregrina L. var. laurentiana Vict. & J. Rousseau, V. polita Fr., and V. simpsonii Phil. Furthermore, supporting information about the type material of a name already typified by Rossow (O. fragrans Phil.) is provided.