6-K

UNITED STATES

SECURITIESAND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2025

Commission File Number: 001-40370

BITFARMS LTD.

(Translation of registrant’s name into English)

110 Yonge Street, Suite 1601, Toronto,Ontario, Canada M5C 1T4

(Address of principal executive offices)

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 ☒

DOCUMENTS INCLUDED AS PARTOF THIS FORM 6-K

On October 30, 2025, the Registrant filed with the Canadian Securities Regulatory Authorities on the System for Electronic Data Analysis and Retrieval + (SEDAR +) a press release, a copy of which is attached hereto as Exhibit 99.1, which is incorporated herein by reference.

See the Exhibits listed below.

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SIGNATURE

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: October 31, 2025

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Exhibit 99.1

Bitfarms SchedulesThird Quarter 2025 Conference Call on November 13, 2025

Toronto, Ontario and New York,New York (October 30, 2025) - Bitfarms Ltd. (NASDAQ/TSX: BITF) (“Bitfarms” or the “Company”), a North American energy and digital infrastructure company, will report its third quarter 2025 financial results on Thursday, November 13^th^ before the market opens. Management will host a conference call on the same day at 8:00 am EST. All Q3 2025 materials will be available before the call and can be accessed on the ‘Financial Results’ section of the Bitfarms investor site.

The live webcast and a webcast replay of the conference call can be accessed here. To access the call by telephone, register here to receive dial-in numbers and a unique PIN to join the call.

AboutBitfarms Ltd.

Bitfarms is a North American energy and digital infrastructure company that builds and operates vertically integrated, state-of-the-art data centers and energy infrastructure for high-performance computing and Bitcoin mining.

With a focus on U.S. growth, Bitfarms’ 1.3 GW energy pipeline is more than 80% U.S.-based and clustered in data center hotspots with robust access to power and fiber infrastructure.

Bitfarms was founded in 2017 and is a proven leader in digital infrastructure with operations throughout the Americas. Bitfarms is headquartered in New York, NY and Toronto, ON and traded on the Nasdaq and Toronto Stock Exchange.

To learn more about Bitfarms’ events, developments, and online communities:

Investor Relations Contact:

Laine Yonker

Investors@bitfarms.com

Media Contact:

Caroline Brady Baker

cbaker@bitfarms.com