Extrasolar may refer to:
- Discoveries of extrasolar planets
- Extrasolar Planets Encyclopaedia
- Extrasolar X-ray source astrometry
- Extrasolar moon, also called "exomoon"
- Extrasolar planet, also called "exoplanet"
- Extrasolar planetary science, also called exoplanetology
- Geneva Extrasolar Planet Search
- List of extrasolar planet extremes
- List of extrasolar planet firsts
- List of extrasolar planets
- List of unconfirmed extrasolar planets
- Methods of detecting extrasolar planets
- Sagittarius Window Eclipsing Extrasolar Planet Search
- Sudarsky extrasolar planet classification
- Systemic (amateur extrasolar planet search project)