Company: NYXH
Filing Date: 2025-11-17
Form Type: 6-K/A
Source: 0001104659-25-112754
Chunk: 1

Company: Nyxoah SA
Filing Date: 2025-11-17
Form: 6-K/A
Chunk 1
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 being filed solely to attach the correct Report which corrects a typo in the Financial Highlights section, includes the correct information regarding going concern in Note 2 of the Report and the events after the balance sheet date in Note 31 of the Report.

Except as described above, this Amendment does not update or modify any other information presented in the Original Form 6-K and does not reflect events occurring after the Original Form 6-K’s filing date of November 13, 2025.

<div align='center'>Nyxoah SA</div>

On November 13, 2025, the Company announced its unaudited third quarter
results for 2025, which are further described in a Third Quarter 2025 report attached hereto as Exhibit 99.1.

The information in the attached Exhibit 99.1 shall be deemed to be incorporated by reference into the registration statements on Form S-8 (Registration Numbers 333-285960,333-261233and333-269410) and Form F-3 (Registration Numbers333-285982and333-268955) of the Company (including any prospectuses forming a part of such registration statements) and to be a part thereof from the date on which this report is filed, to the extent not superseded by documents or reports subsequently filed or furnished.

Exhibits

| 99.1 | Third Quarter Report 2025 |

<div align='center'>SIGNATURES</div>

Pursuant to the requirements of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

| Date: November 14, 2025 | NYXOAH SA 
 By:       | /s/ John Landry         |
|:------------------------|:----------|:------------------------|
|                         | Name:     | John Landry             |
|                         | Title:    | Chief Financial Officer |