Kuki Linux (pronounced "cookie") is a lightweight Ubuntu-based Linux distribution built to be a replacement for the Linpus Linux Lite distribution on the Acer Aspire One. Kuki's goals include working out of the box, fast boot time, low usage of SSD/HDD space, and inclusion of lightweight and functional programs for most daily tasks.

Kuki has several patches and fixes optimized for the Aspire One hardware, and the Kuki Linux kernel includes only the packages required for the Acer Aspire One. Kuki uses the Xfce window manager.

Kuki Linux is available for download in the form of ISO images, which can be used to create Live CDs or Live USBs. The latter can be created using UNetbootin.