Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the IonQ, Inc. 2021 Equity Incentive Plan of our reports dated February 28, 2024, with respect to the consolidated financial statements of IonQ, Inc., and the effectiveness of internal control over financial reporting of IonQ, Inc., included in its Annual Report (Form 10-K) for the year ended December 31, 2023, filed with the Securities and Exchange Commission.
/s/ Ernst & Young LLP
Tysons, Virginia
February 28, 2024
