Ex 99.906 CERT
Certification Pursuant to Rule 30a-2(b) under the 1940 Act (17 CFR 270.30a-2(b))
Each of the undersigned hereby certifies that:
| 1. | The Form N-CSR of Old Westbury Funds, Inc. (the “Report”) fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and |
| 2. | The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of Old Westbury Funds, Inc. |
| Date: July 7, 2025 | /s/David W. Rossmiller | |
| David W. Rossmiller, President and Chief Executive Officer | ||
| (Principal Executive Officer) |
| Date: July 7, 2025 | /s/Matthew A. Rizzi | |
| Matthew A. Rizzi, Treasurer | ||
| (Principal Financial Officer) |