Company: SAND
Filing Date: 2025-03-12
Form Type: 6-K
Source: 0001279569-25-000252
Chunk: 0

Company: SANDSTORM GOLD LTD
Filing Date: 2025-03-12
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
OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of March, 2025

Commission File Number: 001-35617

Sandstorm Gold Ltd.

(Translation of registrant’s name into English)

Suite 3200 – 733 Seymour Street
Vancouver, British Columbia
V6B 0SB Canada

(Address of principal executive offices)</div>

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

| Form 20-F   ¨ | Form 40-F   x |

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

| Exhibit |     | Description of Exhibit                                                 |
| 99.1    |     | Sandstorm Gold Royalties Portfolio Drilling and Development Highlights |

<div align='center'>SIGNATURE</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 12, 
 2025            | SANDSTORM GOLD LTD. 
 By:                 | /s/ Erfan Kazemi               |
|:----------------|:--------------------|:-------------------------------|
|                 |                     | Name: Erfan Kazemi             |
|                 |                     | Title: Chief Financial Officer |