- Singles main draw entrants Seeds Other entrants
- Champions Singles Doubles
{{TennisEventInfo|2019|Chennai Open Challenger|
| date=4 – 10 February
| edition=2nd
| draw =48S / 16D
| surface=Hard
| location=Chennai, India
| champs={{flagicon|FRA}} Corentin Moutet
| champd={{flagicon|ITA}} Gianluca Mager / {{flagicon|ITA}} Andrea Pellegrino
}}The 2019 Chennai Open Challenger was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Chennai, India between 4 and 10 February 2019. Singles main draw entrantsSeeds| Country | Player | Rank1 | Seed |
|---|
| IND}} | Prajnesh Gunneswaran | 102 | 1 | | FRA}} | Corentin Moutet | 143 | 2 | | EGY}} | Mohamed Safwat | 200 | 3 | | ITA}} | Gianluca Mager | 224 | 4 | | ESP}} | Alejandro Davidovich Fokina | 235 | 5 | | KOR}} | Kwon Soon-woo | 236 | 6 | | AUS}} | James Duckworth | 239 | 7 | | KOR}} | Lee Duck-hee | 241 | 8 | | POR}} | Gastão Elias | 246 | 9 | | ESP}} | Nicola Kuhn | 248 | 10 | | IND}} | Saketh Myneni | 260 | 11 | | AUS}} | Maverick Banes | 265 | 12 | | DOM}} | José Hernández-Fernández | 273 | 13 | | LTU}} | Laurynas Grigelis | 281 | 14 | | TPE}} | Yang Tsung-hua | 283 | 15 | | IND}} | Sasi Kumar Mukund | 292 | 16 |
- 1 Rankings are as of 28 January 2019.
Other entrantsThe following players received wildcards into the singles main draw: - {{flagicon|VIE}} Lý Hoàng Nam
- {{flagicon|IND}} Vijay Sundar Prashanth
- {{flagicon|IND}} Abhinav Sanjeev Shanmugam
- {{flagicon|IND}} Manish Sureshkumar
- {{flagicon|IND}} Siddharth Vishwakarma
The following players received entry into the singles main draw using protected rankings: - {{flagicon|GER}} Daniel Altmaier
- {{flagicon|USA}} Daniel Nguyen
The following player received entry into the singles main draw as an alternate: - {{flagicon|RUS}} Ivan Gakhov
The following players received entry into the singles main draw using their ITF World Tennis Ranking: - {{flagicon|TUN}} Moez Echargui
- {{flagicon|RUS}} Ivan Nedelko
- {{flagicon|ESP}} David Pérez Sanz
- {{flagicon|RUS}} Evgenii Tiurnev
The following players received entry from the qualifying draw: - {{flagicon|JPN}} Kaito Uesugi
- {{flagicon|RUS}} Alexander Zhurbin
ChampionsSingles{{main|2019 Chennai Open Challenger – Singles}}- {{flagicon|FRA}} Corentin Moutet def. {{flagicon|AUS}} Andrew Harris 6–3, 6–3.
Doubles{{main|2019 Chennai Open Challenger – Doubles}}- {{flagicon|ITA}} Gianluca Mager / {{flagicon|ITA}} Andrea Pellegrino def. {{flagicon|AUS}} Matt Reid / {{flagicon|AUS}} Luke Saville 6–4, 7–6(9–7).
{{2019 ATP Challenger Tour}}{{DEFAULTSORT:Chennai Open Challenger, 2019}} 1 : 2019 ATP Challenger Tour |