Project Icarus may refer to:
- Project Icarus (interstellar), a study started in 2009 for the design of an interstellar space probe
- Project Icarus (photography), a 2009 Massachusetts Institute of Technology photography project
- Project Icarus, a 1967 MIT student project to defend against risks from the asteroid 1566 Icarus
- "Project Icarus", the working title of the 2013 Irrational Games video game BioShock Infinite
- Icarus Project, a methodology in the diagnosis of mentally ill patients