Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the use in this Registration Statement on Form S-4 of our report dated March 31, 2025, relating to the combined financial statements of the Predecessor Millrose Business. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
| /s/ Deloitte & Touche LLP |
| New York, New York |
| October 10, 2025 |