Company: FRFXF
Filing Date: 2025-03-07
Form Type: 6-K
Source: 0001104659-25-021759
Chunk: 0

Company: FAIRFAX FINANCIAL HOLDINGS LTD/ CAN
Filing Date: 2025-03-07
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934</div>

| For the month of March 2025 | Commission File Number: 001-31556 |

<div align='center'>FAIRFAX FINANCIAL HOLDINGS LIMITED(Name of Registrant)

95 Wellington Street West
Suite 800
Toronto, Ontario
Canada M5J 2N7(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-Fx

<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: March 7, 2025 | FAIRFAX FINANCIAL HOLDINGS LIMITED 
 By:                                | /s/                                     
 Derek Bulas                             |
|:--------------------|:-----------------------------------|:----------------------------------------|
|                     |                                    | Name:    Derek Bulas                    |
|                     |                                    | Title:      Vice President, Chief Legal 
 Officer and                             
 Corporate Secretary                     |

<div align='center'>EXHIBIT INDEX</div>

| Exhibit | Description of            
 Exhibit                   |
| 99.1    | Management Proxy Circular |
| 99.2    | Form of Proxy             |