AIHN is the Association of Industrial Hygienists in Lagos, Nigeria. Established in 2019, it was previously known as the Nigeria Oil & Gas Industrial Hygiene Forum and has since become the umbrella body for all industrial hygienists in Nigeria. AIHN is dedicated to providing expertise, guidance, and information for the management of workplace health hazards in the country.

Industrial hygiene, also known as occupational hygiene, is the discipline of anticipating, recognizing, evaluating, and controlling health hazards in the working environment to protect worker health and well-being. AIHN aims to share knowledge, best practices, and improve competence among industrial hygienists, as well as offer guidance, tools, and resources to facilitate the recognition and control of workplace health hazards. The organization also raises awareness of industrial hygiene's benefits to employers, promotes a healthy working environment, provides study aid and mentorship for trainee industrial hygienists, and works to increase the visibility and influence of industrial hygienists in Nigeria.

AIHN's vision is a healthy workplace for all, and its mission is to be a professional association known for information dissemination and providing expert advice on protecting workers from health hazards in the workplace