Delek US (DK) S-8 Registration of securities for employees

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 Delek US Holdings, Inc. 2016 Long-Term Incentive Plan of our reports dated March 1, 2021, with respect to the consolidated financial statements of Delek US Holdings, Inc. and the effectiveness of internal control over financial reporting of Delek US Holdings, Inc., included in its Annual Report (Form 10-K) for the year ended December 31, 2020, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Nashville, Tennessee

June 9, 2021