Exhibit 32.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report of Stellar V Capital Corp. (the “Company”) on Form 10-Q for the quarterly period ended June 30, 2026, as filed with the Securities and Exchange Commission (the “Report”), I, Prokopios (Akis) Tsirigakis, Co-Chief Executive Officer, President and Chairman of the Board of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:
| 1. | The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and |
| 2. | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
Dated: August 12, 2026
| /s/ Prokopios (Akis) Tsirigakis | |
| Prokopios (Akis) Tsirigakis | |
| Co-Chief Executive Officer, President and Chairman of the Board | |
| (Principal Executive Officer) |