| 2023 Cary Challenger II | |
|---|---|
| Date | 11–17 September |
| Edition | 11th |
| Surface | Hard |
| Location | Cary, North Carolina, United States |
| Champions | |
| Singles | |
 Zachary Svajda | |
| Doubles | |
 Andrew Harris / Rinky Hijikata | |
The 2023 Cary Challenger II was a professional tennis tournament being played on hard courts. It was the 11th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Cary, North Carolina, United States between 11 and 17 September 2023.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| AUS | Rinky Hijikata | 110 | 1 |
| USA | Alex Michelsen | 127 | 2 |
 FRA | Enzo Couacaud | 180 | 3 |
| AUS | Adam Walton | 195 | 4 |
 GBR | |||
| USA | Tennys Sandgren | 207 | 6 |
 ARG | Guido Andreozzi | 226 | 7 |
| USA | Zachary Svajda | 234 | 8 |
The following players received wildcards into the singles main draw:
Darwin Blanch William Jansen
Pedro RódenasThe following players received entry into the singles main draw using protected rankings:
The following players received entry from the qualifying draw:
Jaimee Floyd Angele Garrett Johns Strong Kirchheimer Thai-Son Kwiatkowski Pedro Vives Marcos Donald Young The following player received entry as a lucky loser:
Zachary Svajda def. Rinky Hijikata 7–6(7–3), 4–6, 6–1. Andrew Harris / Rinky Hijikata def. William Blumberg / 
Luis David Martínez 6–4, 3–6, [10–6].