ジェフリー・ウィークス（Jeffrey Weeks、1945年-）は、イギリスの社会学者。専門は、ジェンダー論、セクシュアリティ研究。
ウェールズ出身。2003年からロンドン・サウス・バンク大学教授。
著作 Coming out: homosexual politics in Britain, from the nineteenth century to the present, Quartet Books, 1977. Sex, politics and society: the regulation of sexuality since 1800, Longman, 1981. Sexuality and its discontents: meanings, myths, and modern sexualities, Routledge, 1985. Sexuality, Tavistock, 1986. 『セクシュアリティ』上野千鶴子監訳、河出書房新社, 1996年 Against nature: essays on history, sexuality, and identity, Rivers Oram Press, 1991. Invented moralities: sexual values in an age of uncertainty, Polity Press, 1995. Making sexual history, Polity Press, 2000. 『セクシュアリティの歴史』赤川学監訳、ちくま学芸文庫, 2024年 The World we have won, Routledge, 2007. 『われら勝ち得し世界 セクシュアリティの歴史と親密性の倫理』赤川学監訳、弘文堂, 2015年 The languages of sexuality, Routledge, 2011.
共著 Socialism and the new life: the personal and sexual politics of Edward Carpenter and Havelock Ellis, Sheila Rowbotham and Jeffrey Weeks, Pluto Press, 1977. Same sex intimacies: families of choice and other life experiments, Jeffrey Weeks, Brian Heaphy, and Catherine Donovan, Routledge, 2001.
編著 Between the acts: lives of homosexual men, 1885-1967, edited by Kevin Porter and Jeffrey Weeks, Routledge , 1991. The lesser evil and the greater good: the theory and politics of social diversity, edited by Jeffrey Weeks, Rivers Oram Press, 1994. Sexual cultures: communities, values and intimacy, edited by Jeffrey Weeks and Janet Holland, Macmillan , 1996. Sexualities and society: a reader, edited by Jeffrey Weeks, Janet Holland, and Matthew Waites, Polity, 2003.