Alicia Lourteig (1913–2003) was an Argentine and French botanist, world specialist in Oxalidaceae.

[2] Despite the subjects she studied at university, Lourteig's career was as a botanist, particularly as a taxonomist of the Lythraceae, Ranunculaceae, Mayacaceae and Oxalidaceae.

These included the Royal Botanical Gardens, Kew, UK (1948 to 1950) and herbaria in Stockholm (1950-1951), Copenhagen (1951), Boston (1952-1953) and Washington (1953).

She contributed to the supplement of the Flore de France by Hippolyte Coste and revisions of the International Code of Botanical Nomenclature.

[3] She organised collections made by Aimé Bonpland (1773-1858), José Celestino Mutis (1732-1808), Surian and Charles Plumier (1646-1704) that were in the Paris museum.