| 2019 Yokkaichi Challenger | |
|---|---|
| Date | 5–11 August |
| Edition | 1st |
| Location | Yokkaichi, Japan |
| Champions | |
| Singles | |
 Yūichi Sugita | |
| Doubles | |
 Nam Ji-sung / Song Min-kyu | |
The 2019 Yokkaichi Challenger was a professional tennis tournament played on hard courts. It was the 1st edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Yokkaichi, Japan between 5 and 11 August 2019.