| Club: | Portland Timbers 2 |
| Season: | 2018 |
| Mgrtitle: | Head coach |
| Manager: | Cameron Knowles |
| Stadium: | Providence Park Portland, Oregon (Capacity: 21,144) |
| League: | United Soccer League |
| League Result: | Conference: 6th Overall: 10th |
| Cup1: | USL Playoffs |
| Cup1 Result: | Quarterfinals PHX 3-0 POR (October 19) |
| Prevseason: | 2017 |
| Nextseason: | 2019 |
The 2018 Portland Timbers 2 season was the 4th season for Portland Timbers 2 in the United Soccer League (USL), the second-tier professional soccer league in the United States and Canada.