Khairunnisa binti Haji Ash'ari (born 1987) is a Bruneian activist and politician, known for her work on environmentalism and women's rights.

[3] She later studied at King's College London through a Chevening Scholarship, graduating with a master's degree in environment, politics, and globalization in 2016.

[5] Additionally, Ash'ari was a member of the Brunei Youth Council and co-led the ASEAN Young Professionals Volunteer Corps.

[5][6][8] In 2017, she was appointed as a member of the Legislative Council of Brunei, holding a functional seat reserved for individuals who have achieved distinction in their professional lives.

[12] At a Legislative Council meeting in March 2021, Khairunnisa has been promoting sexual harassment awareness, furthered the #MeToo agenda.

She demanded that a code of conduct be implemented by the Prime Minister's Office to stop sexual harassment in both the public and private sectors.