Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in this Registration Statement on Form S-3 of our reports dated October 11, 2018, relating to the consolidated financial statements of Walgreens Boots Alliance, Inc. and subsidiaries (the “Company”) and the effectiveness of the Company’s internal control over financial reporting (which report expresses an unqualified opinion and includes an explanatory paragraph relating to the acquisition of Rite Aid Corporation), appearing in the Annual Report on Form 10-K of the Company for the year ended August 31, 2018, and to the reference to us under the heading “Experts” in the prospectus, which is part of this Registration Statement.

/s/ Deloitte & Touche LLP

Chicago, Illinois

December 20, 2018