| GNU | GNU Project | — |
| GNU/Linux | Richard Stallman, Linus Torvalds | — |
| GnuLinEx | — | — |
| GoboLinux | — | — |
| Gobuntu | Canonical Ltd. | 2007 |
| Guadalinex | Government of Andalusia | — |
| HandyLinux | — | — |
| Hanthana Linux | — | — |
| Huayra Linux | — | — |
| HyperWRT | — | — |
| Incognito | — | 2008 |
| Inferno | Vita Nuova Holdings, Bell Labs | — |
| Injector Linux | — | — |
| Inquisitor | — | — |
| IPCop | — | 2001 |
| IPFire | — | — |
| Issabel | — | — |
| ISURU Linux | — | — |
| ITIX | — | — |
| JeOS | Canonical Ltd. | — |
| Jlime | — | — |
| Joli OS | — | 2011 |
| Jurix | — | — |
| JX | University of Erlangen–Nuremberg | — |
| Kali Linux | OffSec | 2013 |
| Kali Purple | OffSec | — |
| KaOS | — | 2013 |
| KDE neon | KDE | 2016 |
| Knoppix | Klaus Knopper | — |
| Korora | — | 2016 |
| Kubuntu | Canonical Ltd. | 2005 |
| Kurumin | Carlos Morimoto | — |
| Kylin | National University of Defense Technology | — |
| L4Linux | — | — |
| LEAF Project | — | — |
| LEDE | — | — |
| Linkat | Generalitat of Catalonia | — |
| Linpus Linux | — | — |
| Linux Mint | — | 2006 |
| Linux Mint Debian Edition | — | — |
| Linux Router Project | — | 1997 |
| Linux XP | — | — |
| Linux-Musterlösung | — | — |
| Linuxacessivel.org | — | — |
| Linuxmuster.net | — | — |
| LinuxPPC | — | — |
| LiteOS | — | — |
| LliureX | Generalitat Valenciana | — |