Kai Tak Airport was the international airport of Hong Kong from 1925 until 1998.
Kai Tak or Kai-tak may also refer to:
- Kai Tak Cruise Terminal, a cruise terminal in New Kowloon, Hong Kong
- Kai Tak Development, an urban development plan for the Kai Tak old airport site
- Kai Tak Nullah, nullah in northern New Kowloon, Hong Kong
- Kai Tak station, Hong Kong railway station on the Tuen Ma Line of the Shatin-Central Link
- Kai Tak Sports Park, sports stadium to be built at the site of the original Kai Tak Airport
- Kai Tak Tunnel, tunnel in New Kowloon, Hong Kong
- RAF Kai Tak, former Royal Air Force station in Hong Kong
- Kai Tak (constituency), a former constituency in the Kowloon City District