SUSE ( SOO-sə, SOO-zə, German: [ˈzuːzə]) is a German-based multinational open-source software company that develops and sells Linux products to business customers. Founded in 1992, it was the first company to market Linux for enterprise. It is the developer of SUSE Linux Enterprise and the primary sponsor of the community-supported openSUSE Linux distribution project. While the openSUSE "Tumbleweed" variation is an upstream distribution for both the "Leap" variation and SUSE Linux Enterprise distribution, its branded "Leap" variation is part of a direct upgrade path to the enterprise version, which effectively makes openSUSE Leap a non-commercial version of its enterprise product.

In July 2018, Micro Focus International, SUSE's parent company since 2014, announced its plan to sell the business unit to a subsidiary of EQT Partners in the first quarter of calendar year 2019. This acquisition was completed on 15 March 2019, making SUSE a standalone business. Under new ownership, their legal name is SUSE Software Solutions Germany GmbH.