Company: FORFF
Filing Date: 2025-02-07
Form Type: 6-K
Source: 0001104659-25-010530
Chunk: 0

Company: Fortis Inc.
Filing Date: 2025-02-07
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE
SECURITIES EXCHANGE ACT OF 1934

For the month of February, 2025

Commission File Number 001-37915

Fortis Inc.

Fortis Place, Suite 1100
5 Springdale Street
St. John’s, Newfoundland and Labrador
Canada, A1E 0E4

(Address of principal executive office)</div>

Indicate by check mark whether the registrant
files or will file annual reports under cover of Form 20-F or Form 40-F.

| Form 20-F 
 ¨         | Form 40-F x |

<div align='center'>INCORPORATION BY REFERENCE</div>

The exhibits to this report on Form 6-K are
hereby incorporated by reference.

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

| Exhibit No. 
 99.1        
 99.2        |     | Description                                                                                                                                                                                             
 Indenture dated December 12, 2016, among Fortis Inc. and Computershare Trust Company of Canada                                                                                                          
 Second Supplemental Indenture dated May 14, 2021, among Fortis Inc. and Computershare Trust Company of Canada providing for the issuance of C$500,000,000 in 2.18% senior unsecured notes due 2028      |
|:------------|:----|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 99.3        |     | Third Supplemental Indenture dated May 31, 2022, among Fortis Inc. and Computershare Trust Company of Canada providing for the issuance of C$500,000,000 in 4.431% senior unsecured notes due 2029      |
| 99.4        |     | Fourth Supplemental Indenture dated November 8, 2023, among Fortis Inc. and Computershare Trust Company of Canada providing for the issuance of C$500,000,000 in 5.677% senior unsecured notes due 2033 |
| 99.5        |     | Fifth Supplemental Indenture dated September 9, 2024, among Fortis Inc. and Computershare Trust Company of Canada providing for the