Exhibit 5.1

   

To:

The board of directors of AUNA S.A. Société anonyme 6, Rue Jean Monnet, L-2180  Luxembourg (Grand Duchy of Luxembourg) R.C.S. Luxembourg B267590 (the Addressee) Claire-Marie Darnand° Avocat à la Cour °Claire-Marie Darnand S.à r.l. T +352 26 61 81 F +352 26 61 82 ClaireMarie.Darnand@Stibbe.com   Stibbe Avocats 26, Boulevard Raiffeisen L-2411 Luxembourg Grand Duchy of Luxembourg www.stibbe.com Date 5 July 2024

Dear Sirs,

Re: LUXEMBOURG EXHIBIT 5.1 OPINION - AUNA S.A.

1. Introduction

We have acted as Luxembourg legal advisers to AUNA S.A., a public limited liability company (société anonyme) incorporated and organized under the laws of the Grand Duchy of Luxembourg, having its registered office at 6, Rue Jean Monnet, L-2180 Luxembourg, Grand Duchy of Luxembourg, and registered with the Luxembourg Register of Commerce and Companies (the RCS) under number B267590 (the Company) in relation to the filing of a registration statement on Form S-8, as amended (the Registration Statement) filed with the US Securities and Exchange Commission on the date hereof for the purpose of the Unites States Securities Act of 1933, as amended (the Securities Act), relating to the registration of 7,391,757 class A ordinary shares of the Company with a nominal value of USD 0.01 per share (the Shares), issuable pursuant to the Company’s Amended and Restated Equity Incentive Plan (the “Equity Incentive Plan”).

We have been instructed to deliver this opinion (the Opinion) to the Addressee pursuant to the Registration Statement in respect of the matters referred to in Section 4 (Opinions) below.

We have taken instructions from the Company. The delivery of this Opinion to any other person to whom a copy of this Opinion may be communicated does not evidence the existence of any such advisory duty on our behalf to such person.

2. Scope of Inquiry

We have examined a copy of the following documents:

· a copy of the consolidated articles of association of the Company dated 26 March 2024 (the Articles);

· a copy of the circular resolutions of the board of directors of the Company dated 1^st July 2024 (the Resolutions);

· an excerpt pertaining to the Company delivered by the RCS, dated 7 May 2024 (the Excerpt); and

· a certificate of non-inscription of a judicial decision or administrative dissolution without liquidation (certificat de non-inscription d’une décision judiciaire ou de dissolution administrative sans liquidation) issued by the insolvency register (Registre de l'insolvabilité) held and maintained by the RCS (REGINSOL) in respect of the Company, dated 5 July 2024, stating that on the day immediately prior to the date of issuance of the negative certificate, no decision referred to in article 13, points 4) to 12), 16) and 17) of the Luxembourg law of 19 December 2002 on the register of commerce and companies and the accounting and annual accounts of undertakings is registered in the RCS (the Negative Certificate).

3. Assumptions

For the purpose of this Opinion, we have assumed the following:

1. the authenticity of all documents submitted to us as originals and the conformity to the originals of all documents submitted to us as copies;

2. the information contained in the Resolutions, the Excerpt and the Negative Certificate is true and accurate at the date of this Opinion, except for (i) the address of the registered office and the composition of the board of directors in the Excerpt and (ii) the address of the registered office in the Negative Certificate; and

3. all factual matters and statements relied upon or assumed in this Opinion are and were true and complete.

4 Opinions

Based upon the assumptions made above under Section 3 (Assumptions) and subject to the qualifications set out below under Section 5 (Qualifications), and pursuant to and in accordance with Luxembourg law, we are of the opinion that:

4.1 Corporate existence

The Company is a public limited liability company (société anonyme), duly incorporated and validly existing under the laws of the Grand Duchy of Luxembourg for an unlimited duration.

4.2 Shares

The Shares, if and when issued and paid for in accordance with the Equity Incentive Plan, the Articles and Luxembourg law, will be validly issued, fully paid as to their nominal value and non-assessable (as this term is defined under New York law).

5 Qualifications

The opinions expressed above are subject to the following qualifications:

5.1 Corporate documents may not be available at the RCS and the clerk’s office of the Luxembourg district court forthwith upon their execution and filing and there may be a delay in the filing and publication of the documents or notices related thereto. We express no opinion as to the consequences of any failure by the Company to comply with its filing and publication obligations pursuant to the Luxembourg law of 10 August 1915 on commercial companies, as amended or other Luxembourg laws applicable to commercial companies generally.

5.2 We express no opinion as to whether the Registration Statement is accurate, true, correct, complete or not misleading. In particular, and without limitation to the foregoing, we express no opinion on whether the Registration Statement provides sufficient information for investors to reach an informed assessment of the Company, any companies within the Company's consolidation perimeter and the Shares.

6 Miscellaneous

6.1 This Opinion is as of this date and is given on the basis of the laws of Luxembourg in effect and as published, construed and applied by the Luxembourg courts, as of such date. We undertake no obligation to update it or to advise of any changes in such laws or their construction or application after such date. We express no opinion, nor do we imply any opinion, as to any laws other than the laws of Luxembourg.

6.2 This Opinion is strictly limited to the matters expressly stated in section 4 (Opinions) of this Opinion. No other opinion is, or may be, implied or inferred therefrom.

6.3 This Opinion is for your benefit in connection with the Registration Statement and may be relied upon by you and by persons entitled to rely upon it pursuant to the applicable provisions of the Securities Act.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement. In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act.

	Yours faithfully,
	Stibbe Avocats
By:	/s/ François Bernard
	Claire-Marie Darnand °
	Avocat à la Cour
	Partner
	Claire-Marie Darnand S.à r.l.
	Duly represented by : François Bernard, Avocat à la Cour