Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Form S-8) for the purpose of registering additional shares of common stock under the Equity Incentive Plan of Nasdaq, Inc. (“the Company”) dated October 31, 2025, with respect to the consolidated financial statements of the Company and the effectiveness of internal control over financial reporting of the Company included in its Annual Report (Form 10-K) for the year ended December 31, 2024, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

New York, New York

October 31, 2025