Alexina is a feminine given name. Notable people with the name include:
Alexina Duchamp (1906–1995), American art dealer Alexina Graham (born 1990), English fashion model Alexina Kublu (born 1954), Canadian linguist, educator, translator, and jurist Alexina Louie (born 1949), Canadian composer Alexina Ruthquist (1848–1892), Scottish missionary Alexina Maude Wildman (1867–1896), Australian journalist
See also The Mystery of Alexina, a 1985 French film