Company: ATLN
Filing Date: 2025-07-08
Form Type: 424B3
Source: 0001213900-25-062079
Chunk: 1

Company: ATLANTIC INTERNATIONAL CORP.
Filing Date: 2025-07-08
Form: 424B3
Chunk 1
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<div align='center'>The date of this prospectus is July 3, 2025

TABLE OF CONTENTS</div>

|                                                                 |     | Page No. |
| ADDITIONAL INFORMATION                                          |     |       ii |
| WHERE YOU CAN FIND MORE INFORMATION; INCORPORATION BY REFERENCE |     |      iii |
| PROSPECTUS SUMMARY                                              |     |        1 |
| THE OFFERING                                                    |     |        2 |
| RISK FACTORS                                                    |     |        3 |
| CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENT             |     |       16 |
| USE OF PROCEEDS                                                 |     |       18 |
| SELLING SHAREHOLDERS                                            |     |       18 |
| DESCRIPTION OF THE SHARES TO BE REGISTERED                      |     |       19 |
| PLAN OF DISTRIBUTION                                            |     |       20 |
| SHARES ELIGIBLE FOR FUTURE SALE                                 |     |       22 |
| DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION            |     |       23 |
| MATERIAL CHANGES                                                |     |       23 |
| LEGAL MATTERS                                                   |     |       23 |
| EXPERTS                                                         |     |       23 |

<div align='center'>i

ADDITIONAL INFORMATION</div>

You should rely only on this prospectus, the documents
incorporated or deemed to be incorporated by reference herein or therein, and any free writing prospectus or prospectus subject prepared
by us or on our behalf. We have not authorized anyone to provide you with information different than that contained or incorporated by
reference in this prospectus and any free writing prospectus that we have authorized for use in connection with this Offering. We take
no responsibility for, and can provide no assurance as to the reliability of, any other information that others may give you. You should
assume that the information appearing in this prospectus, the documents incorporated by reference herein, and in any free writing prospectus
that we have authorized for use in connection with this Offering is accurate only as of the date of those respective documents. Our business,
financial condition, results of operations and prospects may have changed since those dates. This prospectus incorporates by reference,
and any prospectus supplement or free writing prospectus may contain, and incorporate by reference, market data including statistics and
forecasts that are based on independent industry publications and other publicly available information. Although we believe those sources