| Date: | 22 – 28 January |
| Edition: | 2nd |
| Surface: | Hard |
| Location: | Indian Wells, California, United States |
| Champs: |  Blaise Bicknell |
| Champd: |  Ryan Seggerman / Patrik Trhac |
| Before Name: | Southern California Open |
| Before Year: | 2024 |
| Main Name: | Southern California Open Challenger Southern California Open |
| After Name: | Southern California Open |
The 2024 Southern California Open II was a professional tennis tournament played on hard courts. It was the second edition of the tournament which was part of the 2024 ATP Challenger Tour. It took place in Indian Wells, California, United States from January 22 to January 28, 2024.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| United States | Zachary Svajda | 143 | 1 | |
 Italy | Federico Gaio | 198 | 2 | |
 Argentina | Marco Trungelliti | 224 | 3 | |
| United States | Brandon Holt | 244 | 4 | |
| United States | Tennys Sandgren | 266 | 5 | |
| United States | Mitchell Krueger | 286 | 6 | |
| United States | Aidan Mayo | 298 | 7 | |
| United States | Thai-Son Kwiatkowski | 316 | 8 |
The following players received wildcards into the singles main draw:
Ryan Seggerman Trevor Svajda Zachary SvajdaThe following player received entry into the singles main draw using a protected ranking:
The following players received entry into the singles main draw as alternates:
The following players received entry from the qualifying draw:
Ozan Baris Andre Ilagan Bruno Kuzuhara Maxwell McKennonSee main article: 2024 Southern California Open II – Singles.
Blaise Bicknell def. Zachary Svajda 6–3, 6–2.See main article: 2024 Southern California Open II – Doubles.
Ryan Seggerman / Patrik Trhac def. 
Thomas Fancutt / 
Ajeet Rai 6–4, 3–6, [10–3].
