| Date: | 18–24 September |
| Edition: | 1st |
| Category: | ATP Tour 250 series |
| Draw: | 28S / 16D |
| Prize Money: | $1,081,395 |
| Surface: | Hard / outdoor |
| Location: | Hangzhou, China |
| Venue: | Hangzhou Olympic Sports Expo Center |
| Champs: | Marin Čilić |
| Champd: |  Jeevan Nedunchezhiyan / Vijay Sundar Prashanth |
The 2024 Hangzhou Open was a men's tennis tournament played on outdoor hard courts. It was the first edition of the Hangzhou Open and part of the ATP Tour 250 series of the 2024 ATP Tour. It took place at the Hangzhou Olympic Sports Expo Center in Hangzhou, China, from 18 September until 24 September 2024. Unseeded Marin Čilić, who entered the main draw on a wildcard, won the singles title.[1] The tournament replaced the Zhuhai Championships on the ATP Tour calendar.[2]
See main article: 2024 Hangzhou Open – Singles.
Zhang Zhizhen 7–6(7–5), 7–6(7–5)See main article: 2024 Hangzhou Open – Doubles.
Jeevan Nedunchezhiyan / Vijay Sundar Prashanth def Constantin Frantzen / Hendrik Jebens 4–6, 7–6(7–5), [10–7]| width=70 | Country | width=175 | Player | Rank1 | Seed |
|---|---|---|---|---|---|
| Holger Rune | 14 | 1 | |||
| Karen Khachanov | 23 | 2 | |||
 Argentina | |||||
 United States | Brandon Nakashima | 39 | 4 | ||
 Italy | Luciano Darderi | 41 | 5 | ||
| China | Zhang Zhizhen | 48 | 6 | ||
 Hungary | Fábián Marozsán | 49 | 7 | ||
| Yoshihito Nishioka | 54 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as lucky losers:
Matteo Berrettini → replaced by Mattia Bellucci Tomás Martín Etcheverry → replaced by Mitchell Krueger Luca Nardi Sebastian Korda → replaced by Maximilian Marterer
Dušan Lajović → replaced by 
Mikhail Kukushkin Alex Michelsen → replaced by 
Damir Džumhur Sumit Nagal → replaced by 
James McCabe Zachary Svajda| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| United States | Nathaniel Lammons | United States | Jackson Withrow | 40 | 1 | |
 United Kingdom | Julian Cash | United Kingdom | Lloyd Glasspool | 80 | 2 | |
| Ariel Behar | United States | Robert Galloway | 85 | 3 | ||
| United Kingdom | Jamie Murray | Australia | John Peers | 91 | 4 |
The following pairs received wildcards into the doubles main draw:
Bu Yunchaokete / Te Rigele Jin Yuquan / Li ZekaiThe following pairs received entry as alternates:
Luciano Darderi / Tomás Martín Etcheverry → replaced by Rinky Hijikata / Mackenzie McDonald Damir Džumhur / Dušan Lajović → replaced by 
Rubin Statham / Zachary Svajda
Sander Gillé / Joran Vliegen → replaced by Blake Bayldon / Thomas Fancutt
