- Abbreviation: ISTECH
- Administration: President: Takahiro Inagawa
- Founded: 2005
- Country: JPN
Interstellar Technologies, Inc. (Japanese: インターステラテクノロジズ（株） Hepburn: Intāsutera Tekunorojizu (kabu)) is a Japanese NewSpace company. It is a rocket spacelaunch company developing the MOMO launcher. Its stated goal is to reduce the cost of access to space. In 2017, it became the first Japanese company to launch a privately developed space rocket, though the launch was unsuccessful. The company plans to complete a rocket by 2020 that would be capable of launching small satellites into orbit.