From Cloud 99: Memories Part One
- Script: Yslaire
- Art: Yslaire
- Translation Publisher: Humanoids
- Original Publisher: Les Humanoïdes Associés
- Genre: Esoteric
From Cloud 99: Memories Part 1 is adapted from the cyber-novel released on the Internet as "Memories du XXe ciel" from 02.31.1997 through 12.31.1999.