Louis Napoleon (1808–1873) was Emperor of France (as Napoleon III) from 1852 to 1870.

Louis Napoleon may also refer to:

• Louis Bonaparte or Louis Napoléon Bonaparte (1778–1846), King Louis I of Holland, brother of Napoleon I
• Napoléon Louis Bonaparte (1804–1831), King Louis II of Holland, second son of Louis Bonaparte (1778–1846)
• Napoléon Eugène, Prince Imperial or Napoléon IV, Prince Imperial, often referred to as Louis Napoléon (1856–1879), only child of Napoleon III
• Prince Louis Napoléon or Napoléon VI, Prince Imperial (1914–1997), pretender to the French throne
• Louis Napoleon (underground railroad), associate of Sydney Howard Gay