| Crystal Illusions | |
| Type: | studio |
| Artist: | Sérgio Mendes |
| Cover: | Crystalillusionsalbum.jpg |
| Released: | 1969 |
| Recorded: | 1968 |
| Studio: | A&M Studios, Hollywood |
| Genre: | Bossa nova |
| Label: | A&M SP-4197[1] |
| Producer: | Herb Alpert, Sérgio Mendes |
| Prev Title: | Fool on the Hill |
| Prev Year: | 1968 |
| Next Title: | Ye-Me-Lê |
| Next Year: | 1969 |
Crystal Illusions is the fifth album by Sérgio Mendes and Brasil '66.