Wilhelm II was German emperor and King of Prussia from 1888 to 1918.

Wilhelm II may also refer to:

• William II of Isenburg-Wied (reigned 1383–88)
• William II, Duke of Bavaria (reigned 1404–17)
• William II, Landgrave of Hesse (reigned 1493–1509)
• William II, Elector of Hesse (reigned 1821–47)
• William II of Württemberg (reigned 1891–1918)

• Kaiser Wilhelm II (disambiguation)
• Willem II (disambiguation), lists people and other objects named with the Dutch equivalent of Wilhelm II
• William II (disambiguation), lists people named with the English equivalent of Wilhelm II

This disambiguation page lists articles about people with the same name.
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