Annibal Napoleão dos Santos (3 January 1845 or 1846 — 1880) was the second of three Napoleão siblings, the elder being Arthur Napoleão (1843–1925), the younger Alfredo Napoleão (1852–1917). All the three were pianists and composers. Annibal is the least important among them, partly because of his weak health and partly of his premature death.