Company: ATLN
Filing Date: 2025-12-05
Form Type: S-3
Source: 0001213900-25-118830
Chunk: 27

Company: ATLANTIC INTERNATIONAL CORP.
Filing Date: 2025-12-05
Form: S-3
Chunk 27
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The date of this prospectus supplement is [_______________],
2025

TABLE OF CONTENTS</div>

Prospectus Supplement

|                                                                                      |     | Page No. |
| ABOUT THIS PROSPECTUS SUPPLEMENT                                                     |     | S-ii     |
| CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS                            |     | S-iii    |
| WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE                      |     | S-iv     |
| PROSPECTUS SUPPLEMENT SUMMARY                                                        |     | S-1      |
| RISK FACTORS                                                                         |     | S-4      |
| USE OF PROCEEDS                                                                      |     | S-6      |
| MARKET PRICE OF OUR COMMON STOCK                                                     |     | S-6      |
| DILUTION                                                                             |     | S-7      |
| DIVIDEND POLICY                                                                      |     | S-7      |
| DESCRIPTION OF SECURITIES OFFERED HEREBY                                             |     | S-8      |
| PLAN OF DISTRIBUTION                                                                 |     | S-10     |
| DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES. |     | S-11     |
| LEGAL MATTERS                                                                        |     | S-11     |
| EXPERTS                                                                              |     | S-11     |
| ADDITIONAL INFORMATION                                                               |     | S-11     |

<div align='center'>S-i

ABOUT THIS PROSPECTUS SUPPLEMENT</div>

This prospectus supplement and the accompanying
base prospectus are part of a registration statement on Form S-3 (File No. 333-__________) that we filed with the Securities and Exchange
Commission (the “SEC”) utilizing a “shelf” registration process. Before buying any of the Securities that
we are offering, we urge you to carefully read this prospectus supplement, together with the accompanying base prospectus and the information
incorporated by reference as described under the headings “Where You Can Find More Information” and “Incorporation of
Certain Information by Reference” in this prospectus supplement, and any free writing prospectus that we have authorized for use
in connection with this offering. Generally, when we refer only to the “prospectus,” we are referring to the base prospectus
and prospectus supplement combined. This prospectus supplement may add to, update or change information in the accompanying prospect