List of highways numbered 685
# List of highways numbered 685

The following highways are numbered 685:

## United States

* I-685 (proposed, Alabama)
* I-685 (proposed, North Carolina)
* I-685 (former proposal, South Carolina)
* SR 685
* LA 685
* MD 685 (former)
* PR-685
* FM 685

| Preceded by 684 | Lists of highways 685 | Succeeded by 686 |
| - | - | - |
