Vaiva is a Lithuanian female given name derived from the Lithuanian word 'vaivorykštė', which means 'rainbow'. In Baltic mythology, a rainbow was considered a manifestation of the Pagan destiny goddess Laima. The name Vaiva is associated with the mythological figure Vaiva, whose father is Perkūnas, the god of thunder. The name gained popularity through the tale 'Perkūnas, Vaiva ir Straublys' written by V.Krėvė-Mickevičius in 1922.