Exhibit 99.3

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May 22, 2023

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Atour Lifestyle Holdings Limited

18th floor, Wuzhong Building

618 Wuzhong Road, Minhang District

Shanghai, People’s Republic of China

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Re: Atour Lifestyle Holdings Limited

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Ladies and Gentlemen,

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We understand that Atour Lifestyle Holdings Limited (the “Company”) has filed a registration statement on Form F-1 (as may be amended from time to time, the “Registration Statement”) with the United States Securities and Exchange Commission (the “SEC”) under the Securities Act of 1933, as amended, in connection with the public offering of American depositary shares of the Company, each representing three Class A ordinary shares, by Shanghai Yi Nan Enterprise Management Partnership and Shanghai Yin Nai Enterprise Management Partnership (the “Proposed Secondary Offering”).

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We hereby consent to the references to our name and the inclusion of information, data and statements from our research reports (collectively, the “Report”), and any subsequent amendments to the Report, as well as the citation of our Report, (i) in the Registration Statement, (ii) in any written correspondence with the SEC, (iii) in any other future filings with the SEC by the Company, including, without limitation, filings on Form 20-F, Form 6-K or other SEC filings (collectively, the “SEC Filings”), (iv) on the websites of the Company and its subsidiaries and affiliates, (v) in institutional and retail road shows and other activities in connection with the Proposed Secondary Offering, and (vi) in other publicity materials in connection with the Proposed Secondary Offering.

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We further hereby consent to the filing of this letter as an exhibit to the Registration Statement and as an exhibit to any other SEC Filings.

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