通用域名支持組織(GNSO)負責制定通用擴展域名（gTLD）的政策。它旨在全球互聯網平台上維持公平及有秩序的運作，同時推動創新和競爭。GNSO不僅負責經由註冊商處理的域名登記事宜，亦會處理有關域名續期的問題。GNSO爲域名支持組織(DNSO)的承繼機構。[1]
Generic Names Supporting Organization. Develops and recommends to the Board substantive policies relating to generic top-level domains and other responsibilities set forth in the Bylaws (ICANN Bylaws).
