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Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements, as listed below, of Atlantic Union Bankshares Corporation and in the related Prospectuses, where applicable, of our reports dated February 23, 2023, with respect to the consolidated financial statements of Atlantic Union Bankshares Corporation and the effectiveness of internal control over financial reporting of Atlantic Union Bankshares Corporation, included in this Annual Report (Form 10-K) of Atlantic Union Bankshares Corporation for the year ended December 31, 2022.

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Registration Statement Numbers

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Form

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Description

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333-248544

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Form S-3

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Common Stock, Preferred Stock, Debt Securities, Warrants, Purchase Contracts, Units

333-102012

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Form S-3

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Common stock

333-81199

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Form S-3

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Common stock

333-255994

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Form S-8

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Atlantic Union Bankshares Corporation Stock and Incentive Plan (as

amended and restated effective May 4, 2021)

333-203580

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Form S-8

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Union Bankshares Corporation Stock and Incentive Plan

333-193364

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Form S-8

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FNB Corporation 2000 Incentive Stock Plan, FNB Corporation 2006 Incentive Stock Plan, StellarOne Corporation Stock Incentive Plan and StellarOne Corporation Stock and Incentive Compensation Plan

333-175808

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Form S-8

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Union First Market Bankshares Corporation 2011 Stock Incentive Plan

333-113842

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Form S-8

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Union Bankshares Corporation Non-Employee Directors’ Stock Plan

333-113839

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Form S-8

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Union Bankshares Corporation 2003 Stock Incentive Plan

333-228455

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Form S-8 via post-effective amendment to Form S-4

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Access National Corporation 2017 Equity Compensation Plan and Access National Corporation 2009 Stock Option Plan

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/s/ Ernst & Young LLP

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Richmond, Virginia

February 23, 2023

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