Project X
- Army Foreign Intelligence Assistance Program
- Atlas Shrugged
- HotSauce
- James Vanderbilt
- Jim Shepard
- Laura Callahan
- Laura Poitras
- List of warez groups
- Messerschmitt Me 163
- Mobility in Harmony Consortium
- Nuon (DVD technology)
- Project X (1949 film)
- Project X (1968 film)
- Project X (1987 film)
- Project X (2012 film)
- Project X (2016 short documentary)
- Project X (accelerator)
- Project X (album)
- Project X (band)
- Project X Haren
- Project-X
- SIGSALY
- The Intercept
- Tim Dog
- Walt Disney
- Walt Disney World Resort
- Weapon X (disambiguation)