Company: SAND
Filing Date: 2025-04-08
Form Type: 6-K
Source: 0001279569-25-000363
Chunk: 0

Company: SANDSTORM GOLD LTD
Filing Date: 2025-04-08
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 April, 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'>Incorporation by Reference</div>

Exhibit 99.1 (Sandstorm Gold Royalties Reports Strong First
Quarter Sales and Record Revenue, $19 Million in Share Buybacks; Financial Results May 6) to this report on Form 6-K is deemed to be filed
and incorporated by reference into this report and is hereby incorporated by reference into and as an exhibit to the registrant’s
Registration Statement on Form F-10 (File No. 333-283100), as amended or supplemented, to the extent not superseded by documents or reports
subsequently filed or furnished by us under the Securities Act of 1933 or the Securities Exchange Act of 1934, in each case as amended.

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

| Exhibit |     | Description of Exhibit                                                 |
| 99.1    |     | Sandstorm Gold Royalties Reports Strong First Quarter Sales and Record 
 Revenue, $19 Million in Share Buybacks; Financial Results May 6        |

<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: April 8, 2025 | SANDSTORM GOLD LTD. 
 By:                 | /s/ Erfan Kazemi               |
|:--------------------|:--------------------|:-------------------------------|
|                     |                     | Name: Erfan Kazemi             |
|                     |                     | Title: Chief Financial Officer |