Modern blend of Ariana (Greek 'very holy') and Rhiannon (Irish/Welsh 'great queen').
Arihanna is a richly layered variant of Ariana/Arianna, a name with multiple deep roots that have wound around each other across millennia. The oldest thread runs through the ancient region of Ariana — the Greek name for a vast territory roughly corresponding to modern Afghanistan, Iran, and parts of Central Asia — from the Sanskrit arya meaning "noble" or "honorable." This gives the name a connection to one of the most significant words in Indo-European linguistics, the root of the name Iran itself and the term Aryan before that word was catastrophically misappropriated in the twentieth century.
A second thread runs through Greek mythology: Ariadne, daughter of King Minos of Crete, who gave Theseus the thread that guided him out of the Labyrinth. Ariadne's name may derive from the Cretan dialect, possibly meaning "most holy" or "very pure," and her story — of love, betrayal, and eventual deification as the bride of Dionysus — has made her one of mythology's most poignant figures. Composers from Monteverdi to Richard Strauss have set her story to music.
Dante placed an allusion to her in the Inferno. The spelling Arihanna draws the name into the orbit of contemporary American culture, particularly after the global rise of Barbadian-American singer Rihanna, whose sound profile influenced a generation of variant spellings. The Ari- prefix has ancient Persian and Greek dignity; the -hanna ending adds a warm Semitic note (Hannah, grace). Arihanna thus wears several civilizations at once — a name both thoroughly modern in its current form and ancient in its bones.