Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the use of our reports dated November 19, 2019 included in the Annual Report on Form 10-K of Oaktree Strategic Income Corporation for the year ended September 30, 2019, with respect to the consolidated financial statements of Oaktree Strategic Income Corporation and the effectiveness of internal control over financial reporting of Oaktree Strategic Income Corporation, incorporated by reference in this Form 10-K/A.

/s/ Ernst & Young LLP

Los Angeles, California

December 18, 2019