美國自由意志主義是一種運動旨在促進個人自由和最小政府[1][2]。雖然就世界範圍來看，自由意志主義一詞被廣泛代指社會主義，但在美國自由意志主義一詞已經偏離了其政治起源[3]。自由意志黨聲稱以下內容是自由意志主義的核心信念：
自由意志主義者支持最大化個人和經濟自由。他們主張建立一個更小的政府：只限於保護個人免受脅迫和暴力。自由傾向者支持個人責任，反對政府官僚和稅收，支持私人慈善，包容多樣的生活方式，支持自由市場，捍衛公民自由[4][5]
據蓋洛普的調查，有17–23%的美國選民在政治傾向是屬於自由意志主義[6]，包括共和黨（特別是自由意志主義共和黨人）、民主黨、自由意志黨和無黨派。
For philosophical literature describing the variations of libertarianism, see:
- Bevir, Mark. Encyclopedia of Political Theory. Thousand Oaks, Calif: Sage Publications, 2010. page 811 （頁面存檔備份，存於互聯網檔案館）;
- Vallentyne, Peter. Libertarianism. Edward N. Zalta (編). The Stanford Encyclopedia of Philosophy Spring 2009. Stanford, CA: Stanford University. March 3, 2009 [March 5, 2010]. （原始內容存檔於2019-07-06）.
in addition to the better-known version of libertarianism—right-libertarianism—there is also a version known as 'left-libertarianism'
;
- Christiano, Thomas, and John P. Christman. Contemporary Debates in Political Philosophy. Contemporary debates in philosophy, 11. Malden, MA: Wiley-Blackwell, 2009. p. 121 （頁面存檔備份，存於互聯網檔案館）;
- Lawrence C. Becker, Charlotte B. Becker. Encyclopedia of ethics, Volume 3 Encyclopedia of Ethics, Charlotte B. Becker, ISBN , page 1562 （頁面存檔備份，存於互聯網檔案館）;
- Paul, Ellen F. Liberalism: Old and New. Cambridge: Cambridge Univ. Press, 2007. p. 187 （頁面存檔備份，存於互聯網檔案館）; and
- Sapon, Vladimir; Robino, Sam. Right and Left Wings in Libertarianism. Canadian Social Science. 2010, 5 (6) [2016-11-14]. （原始內容存檔於2020-09-30）.
- Roderick T. Long, "Towards a Libertarian Theory of Class," Social Philosophy and Policy 15:2 1998, 303–349: pp. 304–08. (Online: Part 1 （頁面存檔備份，存於互聯網檔案館）, part 2 （頁面存檔備份，存於互聯網檔案館）)
Rothbard, Murray N. The Betrayal of the American Right (PDF). Ludwig von Mises Institute. 2009 [2016-11-14]. ISBN 1610165012. （原始內容 (PDF)存檔於2015-07-03）. One gratifying aspect of our rise to some prominence is that, for the first time in my memory, we, 'our side,' had captured a crucial word from the enemy... 'Libertarians'... had long been simply a polite word for left-wing anarchists, that is for anti-private property anarchists, either of the communist or syndicalist variety. But now we had taken it over...
Watts, Duncan. Understanding American government and politics: a guide for A2 politics students 2nd Revised. Manchester University Press. 16 March 2006: 246. ISBN 978-0-7190-7327-4. Gallup Poll news release, September 7–10, 2006.
