| International Society for Individual Liberty: Provides intellectual resources and tools for grassroots advocacy and arranges international conferences for libertarians from all over the world. |
| Advocates for Self-Government: Libertarian polemics, as well as the home site for the Nolan quiz. Publishes a biweekly. |
| Albanian Libertarian Association: Aspires to defend, disseminate, advance, promote and integrate the ideas of classical liberalism in Albanian society. |
| Association of Libertarian Feminists: Information on ALF's purpose, news, discussion papers, and membership information. |
| Australian Libertarian Society: Promotes individual liberty in Australia. |
| Citizens for a Sound Economy: Advocates market-based solutions to public policy problems. |
| CyberNation of Freedom: Dedicated to change the world for the better by returning and defending the inalienable rights of individuals everywhere. |
| Democratic Freedom Caucus: Advancing libertarians and libertarian ideas within the Democratic Party. The site offers news, policy information and links. |
| European Free State: A site with a goal to create a place in Europe for those who want to be free. |
| European Libertarians: Links to libertarian organizations in the major European countries. |
| Free State Project: An organization seeking to persuade 20,000 or more liberty-oriented people to move to New Hampshire, where they may work within the political system to reduce the size and scope of government. |
| FreeOhio: A group of people valuing freedom and devoted to preserving liberty in Ohio. |
| Libertarian Freedom Council: An independent libertarian political organization that promotes libertarianism and works with young professionals, students and entrepreneurs. |
| Libertarian Futurist Society: An organization promoting libertarian science fiction. |
| Libertarian International: Network of continental liberty advocates. |
| Libertarian International Organization: Portal to world libertarian resources, including party websites and studies. |
| Liberty Committee: Group of libertarian Congressmen dedicated to the advancement of liberty. |
| Liberty Network: European free-market libertarians. |
| Liberty Round Table: A group of liberty advocates. |
| Mont Pelerin Society: A classical liberal society, founded by Friedrich Hayek and other scholars. |
| Nova Civitas: Political club in Flanders, Belgium. In Flemish and in English. |
| Outright Libertarians: Gay, lesbian, bisexual, and transgendered Libertarian activists. |
| Pacific Legal Foundation: Supports pro bono litigation for less government and objective law. |
| Philosophers Guild: Libertarian oriented association dedicated to independent thinking. Newsletter, member list, and list of links. |
| Professors of Liberty: An organization consisting of those faculty members at the universities who embrace and advocate the ideals of individual liberty and self-responsibility. |
| Republican Liberty Caucus: Works to advance the principles of limited government, individual liberty and free markets within the Republican Party and throughout the United States. |
| Small Business Survival Committee: Archived media advocacy and issue papers promoting less regulation. Internships available. |
| Society for Individual Freedom: British organization campaigns for more personal freedom, less State control, and for genuinely free enterprise. Publishes pro-freedom articles. |
| The Federalist Society for Law and Public Policy Studies: Research in objective law with papers and support for university chapters. |
| The Libertarian Society of South Africa: Lists meeting times and club principles. |
| Thomas Paine Network: A caucus encouraging dialogue between the libertarian right with their critique of centralized government and the libertarian left with their critique of monopoly capitalism. |
| West Coast Libertarian Foundation: A Canadian libertarian organization in the Greater Vancouver area. |
Classical
