Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in this Registration Statement on Form F-3 of our report dated March 20, 2025 relating to the financial statements of Marex Group plc, appearing in the Annual Report on Form 20-F of Marex Group plc for the year ended December 31, 2024. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

 

/s/ Deloitte LLP
London, United Kingdom
August 4, 2025