[6-K] Bit Origin Limited Current Report (Foreign Issuer)

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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 July 2025

Commission File Number: 001-38857

BIT ORIGIN LTD

(Translation of registrant’s name into English)

27F, Samsung Hub

3 Church Street Singapore 049483

T: 347-556-4747

(Address of principal executive offices)

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 x Form 40-F ¨

On July 21, Bit Origin Ltd (the “Company”) published a press release titled “Bit Origin Acquires Over 40 Million Dogecoin (DOGE) to Advance Treasury Strategy”. A copy of the press release is furnished as Exhibit 99.1 to this Report on Form 6-K and is incorporated herein by reference.

This report on Form 6-K is incorporated by reference into the Company’s Registration Statement on Form F-3 initially filed with the Securities and Exchange Commission on November 21, 2022 (Registration No. 333-268501), as amended, and the Company’s Registration Statement on Form F-3 initially filed with the Securities and Exchange Commission on November 16, 2023 (Registration No. 333-275602), as amended, the Company’s Registration Statement on Form F-3 initially filed with the Securities and Exchange Commission on August 13, 2024 (Registration No. 333-281518).

EXHIBIT INDEX

Exhibit No.		Description
99.1		Press Release - Bit Origin Acquires Over 40 Million Dogecoin (DOGE) to Advance Treasury Strategy

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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.

	BIT ORIGIN LTD.
Date: July 21, 2025	By:	/s/ Jinghai Jiang
	Name:	Jinghai Jiang
	Title:	Chief Executive Officer, Chief Operating Officer and Chairman of the Board

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