Exhibit 5.1

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in this Registration Statement on Form F-10 of Shopify Inc. of our report dated February 17, 2021, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears as Exhibit 1.2 of Shopify Inc.’s Annual Report on Form 40-F for the year ended December 31, 2020.

We also consent to the reference to us under the heading “Interests of Experts”, which appears in the Annual Information Form included in Exhibit 1.1 of Shopify Inc.’s Annual Report on Form 40-F for the year ended December 31, 2020, which is incorporated by reference in this Registration Statement.

/s/ PricewaterhouseCoopers LLP

Chartered Professional Accountants, Licensed Public Accountants

Ottawa, Canada

July 27, 2021

PricewaterhouseCoopers LLP

99 Bank Street, Suite 710, Ottawa, Ontario, Canada K1P 1E4

T: +1 613 237 3702, F: +1 613 237 3963, www.pwc.com/ca

“PwC” refers to PricewaterhouseCoopers LLP, an Ontario limited liability partnership.