The following popular GNU/Linux and BSD distributions are shipping KDE:
| Kubuntu | 4.4 | installable Live-CD |
| Fedora | 4.4 | |
| Mint | 4.3 | |
| openSUSE | 4.4 | separate Live-DVD available |
| PCLinuxOS | 4.4 | installable Live-CD |
| Debian | 3.5 | |
| Mandriva | 4.4 | separate installable Live-CD available |
| Sabayon | 4.4 | |
| Arch | 4.4 | |
| Mepis | 4.3 | installable Live-CD |
| Slackware | 4.4 | |
| FreeBSD | 4.3 | |
| CentOS | 3.5 | |
| Ultimate Edition | 4.4 | |
| PC-BSD | 4.3 | |
| Gentoo | 4.3 | |
| Knoppix | 4.3 | installable Live-DVD |
| Red Hat Enterprise Linux | 3.5 | |
| VectorLinux | 3.5 | |
| sidux | 4.4 | |
| BackTrack | 3.5 | |
| Chakra GNU/Linux | 4.4 | |
| Frugalware Linux | 4.3 | |
| Pardus | 4.4 | separate Live-CD available |
| Super OS | 4.3 |
This is just a short and most likely incomplete list of distributions and projects shipping with KDE. Please refer to the according companies, organisations or projects page for further details about their product.
Linux Distributions:
[
Ark Linux |
Debian GNU/Linux |
Fedora Core |
Gentoo Linux |
Kubuntu |
Mandriva Linux |
NimbleX |
openSUSE |
Pardus Linux |
SUSE Linux Enterprise |
Slackware Linux |
T2 SDE |
Turbolinux |
Xandros |
Yellow Dog Linux ]
BSD Derivatives:
[
FreeBSD |
NetBSD |
OpenBSD ]
The goal of Ark Linux is to build the easiest to use Linux distribution available, while keeping it technically sane.
Built around KDE 3.4, the base insall CD of Ark Linux contains everything the average desktop user will need - other tools, for example compilers and development tools, additional games and support for additional languages, are available on the extra CD images "Ark Development Suite", "Ark Extra Software", "Ark Server Software" and "Ark Extra Languages", and of course in our large online package repository, easily accessed through the Kynaptic GUI. Experienced users can use the "apt-get" tool to install software from the repository on the command line.

"Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. Debian uses the Linux kernel (the core of an operating system), but most of the basic OS tools come from the GNU project; hence the name GNU/Linux.
Debian GNU/Linux provides more than a pure OS: it comes with more than 8710 packages, precompiled software bundled up in a nice format for easy installation on your machine."

The Fedora Project is a Red Hat-sponsored and community-supported open source project. Its goal is to work with the Linux community to build a complete, general purpose operating system exclusively from free software.
"Gentoo Linux is a versatile and fast, completely free Linux distribution for x86, PowerPC, UltraSparc and Alpha systems that's geared towards Linux power users. Unlike other distros, Gentoo Linux has an advanced package management system called Portage. Portage is a true ports system in the tradition of BSD ports, but is Python-based and sports a number of advanced features including dependencies, fine-grained package management, "fake" (OpenBSD-style) installs, path sandboxing, safe unmerging, system profiles, virtual packages, config file management, and more."

Kubuntu is the distribution for KDE fans. Its releases are timed against KDE and always include the latest version. The package archives are shared with Ubuntu meaning it has the largest collection of Free Software ready to install and is easily installable by users of any of the other Ubuntu distributions.

"Mandriva Linux™ is a friendly Linux Operating System which specializes in ease-of-use for both the home/office and servers. It is freely available in many languages throughout the world."
"NimbleX is a small but versatile operating system which is able to boot from CD, flash memory (USB pens or Mp3 players) and even from the network. Because it runs entirely from a CD, USB or network it doesn’t require installation or even much hardware. NimbleX is based on Slackware and uses linux-live scripts to provide a user friendly, UNIX like OS, that's pretty much indestructible. NimbleX is very customizable and the availability of many software packages allows extending the distro to do just about everything you need for fullfiling your goals. Even if is small, the distro always had KDE as it's main Desktop Environment and basically everything you need for browsing the internet, writing documents, listening to music, playing movies and much more. You even have some of the server things in it."
"Your enterprise needs to be ready for anything. Now you can be more than ready, with SUSE Linux Enterprise from Novell. This enterprise-grade Linux delivers a complete open source platform for your mission-critical applications. So, whether you need a Linux solution with built-in virtualization, security and management tools, or a Linux solution that works with Microsoft Windows, SUSE Linux Enterprise is ready to get it done—desktop to data center."

"Pardus is an easy-to-install and use operating system, with many enhancements to desktop usability, compatibility and security. With Pardus 2009 and its own package management system PISI, users can connect to Internet, read e-mails, securely communicate with others and exploit the computer's multimedia capabilities by listening to music and watching movies."

"Slackware is the veteran of Linux distributions. Slackware is well known for its very high standards for quality. You may expect not always the most recent bells and wistles but a rock solid Linux instead. The heart of Slackware is its founder Patrick Volkerding. Slackware is the most "UNIX-like" distribution and less market driven.
Slackware is mainly supported via mailing lists and news groups."

"With a 70% KDE user-base, and more KDE developers working on it than any other distribution, openSUSE is the perfect platform for KDE. openSUSE 11.1 provides all the tools and resources you need for effective home computing and computing on the go. It includes a complete, intuitive Linux desktop with a Web browser, instant messenger, e-mail client, photo catalog, word processor, spreadsheet, graphics tools, multimedia software, games and more. Its office suite is 100-percent compatible with Microsoft Office, and it also features the latest software for home networking, wireless support, Web hosting, virtualization, application security and software development."

"The T2 System Development Environment, in short SDE, allows the creation of custom distributions. It supports a variety of platforms including Alpha, AMD64, i386, IA-64, MIPS, PowerPC and SPARC. The system is designed to compile the packages from the sources, but the project provides pre-built install and live images as well. Among the nearly 3000 packages KDE is the best supported and default desktop environment."

"Turbolinux 8 Workstation for US-based OEMs gives PC and workstation manufacturers the opportunity to provide their business users with easy access to the tools, applications, support, and stability of Linux. Turbolinux 8 Workstation includes e-mail, web browsers, office and mail suites, PDA hot-sync capabilities, ADSL setup tool, MP3 and MIDI, and diverse hardware support including USB devices. Turbolinux 8 Workstation also allows for optional installation of Windows 95/98 in either free disk space or dual-boot environments. In addition, Turbolinux 8 Workstation provides an ADSL interface for high-speed connections and extended support for various digital media including digital video data. (Available in Japan and China only)"

"Xandros Desktop OS is an intuitive graphical environment that works right out of the box and offers unrivaled compatibility with Microsoft Windows. The new Xandros Business Desktop OS adds enterprise-class Active Directory and PDC authentication to the peer-to-peer Windows networking found in the consumer editions."

"Yellow Dog Linux v4.0 is a complete, Fedora RPM-based operating system for PowerPC computers. Yellow Dog Linux v4.0 offers an intuitive, flexible graphical installer, 1300 packages on 8 CDs (4 Install, 4 Source), a unified KDE and GNOME desktop environment featuring shared menus, applications, and user interface ... and of course, support for the Apple G5 Power Macs!"

"FreeBSD is an advanced BSD UNIX operating system for "PC compatible" computers, developed and maintained by a large team of individuals.
FreeBSD offers advanced networking, performance, security and compatibility features today which are still missing in other operating systems, even some of the best commercial ones.
FreeBSD makes an ideal Internet or Intranet server. It provides robust network services, even under the heaviest of loads, and uses memory efficiently to maintain good response times for hundreds, or even thousands, of simultaneous user processes. Visit our gallery for examples of FreeBSD powered applications and services. The "KDE on FreeBSD" team maintains a set of current packages."
"The NetBSD operating system is a full-featured, open source, Unix-like operating system descended from the Berkeley Networking Release 2 (Net/2), 4.4BSD-Lite, and 4.4BSD-Lite2. NetBSD runs on a variety of different system architectures featuring numerou distinct families of CPUs. The NetBSD packages collection has current packages of KDE."
"The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. OpenBSD supports binary emulation of most programs from SVR4 (Solaris), FreeBSD, Linux, BSD/OS, SunOS and HP-UX. The Open BSD ports tree has current packages of KDE."
IBM ships KDE as part of their AIX toolbox.
Additionally, Staikos Computing Services Inc. provides inofficial KDE 3.1.4 packages.. Please read the FAQ for details.
"AIX® toolbox for Linux® Applications contains a collection of open source and GNU software built for AIX 4.3.3 and AIX 5L for IBM pSeries systems and IBM RS/6000. These tools provide the basis of the development environment of choice for many Linux application developers. All the tools are packaged using the easy to install RPM format."
Sun ships KDE as part of the Solaris Freeware Companion CD.