Hong Kong Institute of Architects (HKIA, Chinese: 香港建築師學會) is a professional body for architects in Hong Kong with approximately 1500 full members, 300 associates members and graduate members.

[1] Originally named the Hong Kong Society of Architects, it was formed on 3 September 1956 by 27 architects.

It is recognized by the Royal Institute of British Architects as an Allied Society since 1957 and renamed to Hong Kong Institute of Architects in 1972.

[1] The professional post-nominals system of HKIA was introduced in 1972, members are entitled to use the post-nominals HKIA after their name, and describe themselves as "architect" or "Member of The Hong Kong Institute of Architects", while associates may describe themselves as "Associate of The Hong Kong Institute of Architects", no post-nominal or abbreviation is permitted.

[1] In 2020, HKIA has "skipped" its 64th anniversary on its social media for alleged political sensitivity (assimilation with the June 4th massacre) and went straight to celebrate its 65th anniversary which was due to take place in 2021.