Niccolò II

Niccolò II may refer to:


 * Niccolò II Alberti (c. 1250 – 1321)
 * Niccolò II Sanudo (died aft. 1374)
 * Niccolò II d'Este, Marquis of Ferrara (1338–1388)
 * Niccolò II Ludovisi (1699–1700)