| 2018 Nordic Naturals Challenger | |
|---|---|
| Date | 6–12 August |
| Edition | 31st |
| Location | Aptos, California, United States |
| Champions | |
| Singles | |
 Thanasi Kokkinakis | |
| Doubles | |
| Thanasi Kokkinakis / Matt Reid | |
The 2018 Nordic Naturals Challenger was a professional tennis tournament played on hard courts. It was the 31st edition of the tournament which was part of the 2018 ATP Challenger Tour. It took place in Aptos, California, United States between 6 and 12 August 2018.