Treaty of Chicago may refer to:

• Treaty of Chicago, two treaties that were signed between the US Government and Native Americans.
• Convention on International Civil Aviation, also known as the Chicago Convention which established the International Civil Aviation Organization (ICAO), a specialized agency of the United Nations charged with coordinating and regulating international air travel.

• The Platinum Collection (Guy Clark album)
• The Platinum Collection (Laura Branigan album)
• The Platinum Collection (Nomad)
• The Platinum Collection (Nomadi album)
• The Platinum Collection (Queen album)
• The Platinum Collection (Queen box set)
• The Platinum Collection (Sandra album)
• The Platinum Collection (Scorpions Album)
• The Platinum Collection (Scorpions album)
• The Platinum Collection: Sounds of Summer Edition
• The Platinum Collection - Sounds of Summer Edition
• The Platinum Collection (Sounds of Summer Edition)
• The Platinum Collection Sounds of Summer Edition
• The Platinum Collection (Take That box set)
• The Platinum Collection (Take That Box Set)
• The Platinum Collection (The Beach Boys album)
• The Platinum Collection (The Darkness Album)
• The Platinum Collection Volume 3: Shout to the Lord 3
• The Platinum & Gold Gollection - Rick Astley
• The Platinum Rule
• The Platinum Rule (disambiguation)
• The Platinum Rule (How I Met Your Mother)
• The Platinum Rule (Television)
• The Plato Cult
• The Platonic tradition