The Commission for Investigation of Abuse of Authority (CIAA; Nepali: अख्तियार दुरुपयोग अनुसन्धान आयोग) is an apex constitutional body for corruption control for the Government of Nepal.

The Constitution of Nepal has empowered CIAA to investigate and probe cases against the persons holding any public office and their associates who are alleged to indulge in the abuse of authority by way of corruption.

[3] The CIAA will initiate investigations against all public officials if the complaint is made in writing or in the media or through any source related to allegations of abuse of power.

Commissioner Raj Narayan Pathak resigned on February 15, 2019 after news reports of corruption surfaced about a Medical College License.

[4] The Commission for the Investigation of Abuse of Authority (CIAA) has initiated legal proceedings against 1,545 individuals and organizations in 201 corruption cases during 2023/24.