The Taiki Multi-Purpose Aerospace Park (Japanese: 大樹町多目的航空公園, Hepburn: Taiki-chō Tamokuteki Kōkū Kōen) is an aerodrome in the town of Taiki, Hokkaido, Japan.

Taiki Aerospace Research Field (Japanese: 大樹航空宇宙実験場, Hepburn: Taiki Kōkū Uchū Jikkenjō) is a research field of the Japan Aerospace Exploration Agency (JAXA) located in this park. It is used for aerospace experiments, such as high-altitude balloon launches. JAXA's Aeronautical Technology Directorate and Institute of Space and Astronautical Science (ISAS) use the following facilities:

• Flight Test Building
• Flight Control Building
• JAXA's Hangar
• Balloon Operation Building
• Weather Observation Equipment
• Handling Area
• Sliding Launcher for a Scientific Balloon

Rocket launch pad of Interstellar Technologies (IST) resides next to the field. In April 2021, a plan to expand the park to build a private sector spaceport, Hokkaido Spaceport [ja], was announced. The launch pad currently used by IST for the sounding rockets is called Launch Complex-0. Launch Complex-1, the new launch pad for orbital launch is planned to start construction in 2024, and another pad Launch Complex-2 is planned. The runway was extended from 1000 m to 1300 m by 2024. Possibility of new 3000 m runway is under investigation.

• Taiki Aerospace Research Field, JAXA
• 大樹町多目的航空公園, Taiki Town. (in Japanese)
• 大樹航空宇宙基地構想 HOKKAIDO SPACEPORT 〜FINAL FRONTIER〜, The Tokachi Mainichi Shimbun [ja]. (in Japanese)
• Hokkaido Spaceport

42°30′00″N 143°26′29″E / 42.50000°N 143.44139°E / 42.50000; 143.44139