Wikimedia Executive and Leadership Team

May, 2026

Leadership Overview

Wikimedia has 7 executives leading key functions including strategy, operations, communications, and board governance.

Driven by a mission to empower humanity through free knowledge, Wikimedia operates some of the world's most popular websites, fostering a global community dedicated to open access and collaborative information sharing.

Leadership Roles at Wikimedia

  • Chief Executive Officer - João Peschanski
  • Interim Chief Operating Officer - Terence Gilbey
  • President - Barrett Roberts
  • President & Member of The Board Executive - Miroslav Loci
  • President - Érica Azzellini
  • Deputy Chief of Staff - Marguerite Lee
  • Chief Communications Officer, Marketing IC-7 - Lindsay Ferguson
  • João Peschanski - Chief Executive Officer

    João Peschanski, the Chief Executive Officer at Wikimedia, directs the overarching strategy and operational execution for the organization's global free knowledge initiatives. Peschanski guides the foundation's mission to empower humanity through accessible information, overseeing the development and expansion of Wikipedia and its sister projects. This leadership role involves fostering innovation in content creation and distribution, ensuring the integrity and growth of the world's largest collaborative knowledge base. João Peschanski drives strategic partnerships and resource allocation to support the foundation's nonprofit objectives, maintaining its position as a leading global platform for information access. The Chief Executive Officer's focus remains on advancing the organization's impact and sustainability in the digital landscape.

    Terence Gilbey - Interim Chief Operating Officer

    Terence Gilbey, the Interim Chief Operating Officer at Wikimedia, manages the day-to-day operations and ensures the efficient functioning of the foundation's global infrastructure. Gilbey oversees critical operational areas, including technology, infrastructure, and support services, essential for maintaining the accessibility and reliability of Wikipedia and its related projects. This leadership position involves optimizing resource deployment and driving operational excellence across all departments. Terence Gilbey focuses on enhancing the scalability and resilience of the platform to meet the demands of a growing global user base. The Interim Chief Operating Officer's responsibilities extend to implementing best practices in operational management to support the organization's mission of providing free access to information.

    Barrett Roberts - President

    Barrett Roberts, the President at Wikimedia, drives the strategic vision and organizational development for the foundation's global operations. Roberts leads initiatives focused on expanding the reach and impact of Wikipedia and its sister projects, fostering a culture of innovation and collaboration. This executive position involves overseeing key strategic partnerships and resource management to advance the mission of free knowledge. Barrett Roberts is dedicated to ensuring the long-term sustainability and growth of the organization's digital platforms. The President's leadership is instrumental in navigating the evolving landscape of information access and digital community engagement.

    Miroslav Loci - President & Member of The Board Executive

    Miroslav Loci, the President & Member of The Board Executive at Wikimedia, provides critical leadership in shaping the organization's strategic direction and governance. Loci contributes to the oversight of Wikimedia's mission to empower humanity through free knowledge, ensuring alignment between operational execution and board directives. This dual role involves guiding high-level strategic planning and actively participating in board deliberations to uphold the foundation's principles. Miroslav Loci's involvement ensures robust governance structures are in place to support the integrity and growth of Wikipedia and its associated projects. The President & Member of The Board Executive's focus is on long-term organizational health and mission fulfillment.

    Érica Azzellini - President

    Érica Azzellini, the President at Wikimedia, spearheads strategic initiatives aimed at advancing the organization's global mission of providing free access to knowledge. Azzellini focuses on fostering community engagement and driving innovation across Wikimedia's diverse projects, including Wikipedia. This leadership position involves cultivating partnerships and overseeing programs that enhance information accessibility worldwide. Érica Azzellini is committed to strengthening the foundation's operational framework and expanding its reach. The President's strategic direction ensures the continued growth and impact of Wikimedia's free knowledge resources for a global audience.

    Marguerite Lee - Deputy Chief of Staff

    Marguerite Lee, the Deputy Chief of Staff at Wikimedia, supports the Chief Executive Officer in executing strategic initiatives and managing organizational priorities. Lee facilitates cross-departmental collaboration, ensuring alignment across various functions critical to Wikimedia's mission. This role involves streamlining internal processes and enhancing operational efficiency to support the global reach of Wikipedia and other knowledge projects. Marguerite Lee contributes to the strategic planning and implementation of key programs, acting as a liaison between leadership and operational teams. The Deputy Chief of Staff's efforts are directed towards optimizing resource utilization and advancing the foundation's commitment to free knowledge dissemination worldwide.

    Lindsay Ferguson - Chief Communications Officer, Marketing IC-7

    Lindsay Ferguson, the Chief Communications Officer, Marketing IC-7 at Wikimedia, directs all external and internal communication strategies to amplify the foundation's mission. Ferguson oversees the development and execution of marketing campaigns and public relations efforts that highlight the importance of free knowledge and the impact of Wikipedia. This role is crucial for engaging diverse audiences and stakeholders globally, fostering understanding and support for Wikimedia's initiatives. Lindsay Ferguson leads the charge in shaping the narrative around the organization's contributions to education and information access. The Chief Communications Officer, Marketing IC-7's work ensures consistent messaging and brand integrity across all platforms.

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    Frequently Asked Questions Regarding Wikimedia Top Executives and Leadership Team

    Who leads Wikimedia?
    Wikimedia is led by João Peschanski (Chief Executive Officer), along with executives such as Terence Gilbey (Interim Chief Operating Officer) and Barrett Roberts (President).
    Who is part of Wikimedia’s executive team?
    The executive team of Wikimedia includes leaders such as João Peschanski (Chief Executive Officer), Terence Gilbey (Interim Chief Operating Officer), Barrett Roberts (President) and other senior executives.
    How many executives does Wikimedia have?
    Wikimedia has 7 executives leading key business areas.
    What roles are included in Wikimedia’s leadership team?
    The leadership team of Wikimedia includes roles such as Chief Executive Officer, Interim Chief Operating Officer, President, President & Member of The Board Executive, President.