Wan Yanhai (Chinese: 万延海; pinyin: Wàn Yánhǎi; born 20 November 1963) is a Chinese-American AIDS activist.

[2] Wan is currently the director of the country's foremost AIDS-awareness group, the Beijing-based Aizhixing Institute of Health Education.

He expanded his work to advocate for the health of injection drug users, sex workers, and other marginalized groups disproportionately affected by the AIDS epidemic.

In July 2002, Chinese authorities banned the AIZHI Action Project and shut down Wan's office.

[4] In August 2002, Wan forwarded a secret government report documenting 170 AIDS-related deaths in Henan province to an email list.

[9] He was detained on November 24, 2006, prompted by his efforts to organize a public forum on HIV/AIDS to coincide with World AIDS Day.

[12][13] After his release on November 27, 2006, Wan accused Chinese leaders of falling "asleep" as the virus spreads.

[citation needed] He was forced by the government to cancel his "Blood Safety, AIDS and Legal Human Rights Workshop," due to have taken place between 25 and 30 November 2006.

[6] Wan participated in the democracy movement beginning in 1986, and witnessed the events of June 4, 1989 at Tiananmen Square.

[citation needed] In 2015, Wan, his wife, and their two daughters moved to Rego Park, Queens, New York City.