Aldo may refer to:

• Aldo Groupe, a worldwide chain of shoe stores (heels and boots) founded by Aldo Bensadoun in Montreal, QC in 1972.
• Aldo (Planet of the Apes), a gorilla character in the Planet of the Apes series of movies;
• Aldo, the main character in the Italian comic strip Venerdì 12;
• Aldo, aka John Aldridge Prolific and committed English striker and all time English Top Scorer.
• Aldo (1910 Automobile), an early American automobile
• Aldo Burrows, a character from the television series Prison Break.
• Aldo Buzzi, Italian author and architect
• Aldo, a minor character in the television series "Lost".
• Aldo Giuffrè, Italian film actor and comedian
• Aldous Huxley, author of "Brave New World" and "The Doors of Perception".
• Aldo's Adventure, a platform computer game for DOS from 1987.
• Aldo Nova, a Canadian musician.
• Aldo Leopold, an American ecologist, forester, and environmentalist.
• Aldo Kelrast, a character from the comic strip "Mary Worth"
• Aldosterone in shorthand.
• Aldo Trapani, the main character of The Godfather: The Game.
• Aldo Ciccolini, a pianist.
• Aldo (musician), a Franco Arabic singer.