Mary II (disambiguation)

Mary II (1662–1694) was Queen of England, Scotland and Ireland from 1689 until her death.

Mary II may also refer to:
 * Mary II, Countess of Menteith (fl. 1330)
 * Mary II of Portugal (1819–1853)
 * Mary ʻĪʻī (c. 1833–1853)
 * Queen Mary 2, an ocean liner that entered service in 2004
 * Mary-2 airbase, a Soviet-era airbase used by the Turkmen Air Force