Autech
| Native name | オーテック | 
|---|---|
| Romanized name | Ōtekku | 
| Company type | Division | 
| Industry | Automotive | 
| Founded | 
 | 
| Fate | Merged with Nismo | 
| Headquarters | , Japan | 
| Key people | |
| Services | Car tuning | 
| Parent | Nissan Motorsports & Customizing | 
| Website | www.autech.co.jp | 
Autech (オーテック, Ōtekku) is a division of Nissan Motorsports & Customizing focused on tuning and converting Nissan cars. Autech was a subsidiary company of Nissan from its establishment in 1986 to 2022, when it was merged with Nismo.