Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the following Registration Statements:
| • | Securities Registration Statement (Form S-1 No. 333-228126) pertaining to the Equitrans Midstream Corporation to the registration of common stock for issuance under the Company's Dividend Reinvestment and Stock Purchase Plan (DRSPP). |
| • | Securities Registration Statement (Form S-1 No. 333-228129) pertaining to the Equitrans Midstream Corporation to the registration of common stock. |
| • | Registration Statement (Form S-8 No. 333-228337) pertaining to the Equitrans Midstream Corporation 2018 Long-Term Incentive Plan, |
| • | Registration Statement (Form S-8 No. 333-228338) pertaining to the Equitrans Midstream Corporation Employee Savings Plan, and |
| • | Registration Statement (Form S-8 No. 333-228340) pertaining to the Equitrans Midstream Corporation Directors' Deferred Compensation Plan. |
of our report dated February 14, 2019, with respect to the consolidated financial statements of Equitrans Midstream Corporation included in this Annual Report (Form 10-K) of Equitrans Midstream Corporation for the year ended December 31, 2018.
/s/ Ernst & Young LLP
Pittsburgh, Pennsylvania
February 14, 2019