Arjan El Fassed (born 5 August 1973) is a former Dutch politician and human rights activist as well as development aid worker.

He focused on matters of development aid, foreign policy, digital rights, open data and transparency.

El Fassed studied political science at Leiden University and worked as a lobbyist and advisor for several human rights and humanitarian organizations, among others Palestinian Society for the Protection of Human Rights (LAW), the Interchurch Organisation for Development Cooperation (ICCO), Oxfam Novib as well as Oxfam International.

He is co-founder of The Electronic Intifada (EI), a website that claims to provide a Palestinian point of view on the Israeli-Palestinian conflict.

Since 2013, he is director of the Open State Foundation, a non-profit organization based in the Netherlands that promotes democratic transparency, accountability and participation with the development of online platforms and promotes unlocking and re-use of open (government) data.