¡Wikipedia cumple 20 años
y hay que celebrarlo!


We make knowledge free and accessible

We are the chapter recognized by the Wikimedia Foundation in Spain: a non-profit association that promotes free knowledge and Wikimedia projects, Wikipedia being the best known. We were established in 2011 and have spent all these years working to improve accessibility, use and participation in the free encyclopedia and its sister projects, both socially and institutionally.


Elected in April 2021 in general assembly

Florencia Claes


Her first Wikipedia article was about a German film director, and she wrote it for an extra point in a career subject. Since 2009 she has not stopped. Her greatest contribution to Wikipedia is not her articles, but explaining to others how the project works and why it is important to be a wikimedian.

Mentxu Ramilo Araujo

vice president

User of wikis since 2004, until 2015 she did not dare to edit Wikipedia. She started like a bull in a china shop and got very pissed off when her first article was deleted. She did not give up and decided to learn how to edit and to help others edit in order to reduce the gender gap on Wikipedia.

Ana Porras


Official of the Higher Body of Information Systems and Technologies of the State Administration. Although she created her user account on Wikipedia in 2015, she did not start editing until 2017 in the WikiEsfera working group at Medialab-Prado. She regularly contributes with the Wikimedia Data Verification Laboratory.


María Bolado


She tries to bring her students closer to free software and its philosophy. These concerns led her to become involved in the Wikimedia movement and in the defense of free knowledge. She has a keen interest in photography and enthusiastically contributes to the Wikimedia Commons. She is a member of the Board of Directors since 2018.

Ester Bonet


She came to Wikipedia to contribute with her knowledge in the field of sports. She soon realized that the phrase ‘the free encyclopedia that EVERYONE can edit’ was not quite true. She works for a diverse and egalitarian Wikipedia in which women are not part of a minority both in terms of content or in number of editors.

Pedro Pacheco


After winning the Spanish edition of Wiki Loves Monuments in 2014, he was encouraged to partner. Having accounting knowledge led him to the Board of Directors. He brings his photos to the movement, in addition to the association’s fiscal and accounting management. Actively participate in the association’s strategy and relationships.

Santiago Navarro Sanz


Editor of Wikipedia and other Wikimedia projects since 2006. He has contributed more than 130,000 editions, created more than 1,300 articles and uploaded more than 6,000 files. He has been the administrator of Spanish Wikipedia since 2008 and a founding partner of Wikimedia Spain.


Salaried staff in the association

Pilar de la Prieta

Pilar de la Prieta

chief executive officer

With more than 20 years of experience in various types of companies and institutions. The most recent stage, she has been dedicated to the strategic plans development, the execution of operational objectives and the institutional relations with different government administrations and companies. She is an advocate for Open Access.

Rubén Ojeda


Since 2016 he has carried out planning and coordination tasks for the different activities and projects of Wikimedia Spain. It establishes relationships with groups and cultural and educational institutions and supports associates and volunteers, with the aim of supporting the development and dissemination of free knowledge.

Our programs


Diversification and improvement of content on Wikimedia


Outreach and support to the Wikimedia community

Press room

Access all our press releases

Write to our communication department to learn more about Wikipedia and the movement for free knowledge

Click to download our official logos

Our by-laws

The by-laws regulate the organization and operation of the association throughout its life and during the development of its activity, both internally and externally.

Help us share knowledge and make it free

Our global volunteer community includes more than 200,000 people editing and sharing knowledge in multiple formats, millions of people viewing information or reading, and tens of thousands making small donations to support us.