| Details | |
|---|---|
| Duration | 31 December 2018 – 24 November 2019 |
| Edition | 42nd (11th under this name) |
| Tournaments | 158 |
| Categories | Challenger 125 (20) Challenger 110 (7) Challenger 100 (11) Challenger 90 (21) Challenger 80 (99) |
| Achievements (singles) | |
| Most titles |  Ričardas Berankis  James Duckworth  Emil Ruusuvuori  Mikael Ymer (4) |
| Most finals | James Duckworth Mikael Ymer (6) |
← 2018 2020 → | |
The ATP Challenger Tour in 2019 was the secondary professional tennis circuit organized by the ATP. The 2019 ATP Challenger Tour calendar had 158 tournaments scheduled, with prize money ranging from $54,160 up to $162,480. It was the 42nd edition of challenger tournaments cycle, and 11th under the name of Challenger Tour.