United Community Banks (UCB) S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 23.3

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-4A of United Community Banks, Inc. of our report dated February 25, 2021 relating to the financial statements, and the effectiveness of internal control over financial reporting, which appears in United Community Banks, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2020. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Atlanta, GA 

October 20, 2021