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 November 2025

Commission File Number: 001-35866

KNOT Offshore Partners LP

(Translation of registrant’s name into English)

2 Queen’s Cross,
Aberdeen, AB15 4YB
United Kingdom
(Address of principal executive office)

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 x            Form 40-F ¨

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

Attached as Exhibit 99.1 is a copy of the Notice of Annual Meeting of Limited Partners and Proxy Statement of KNOT Offshore Partners LP dated November 13, 2025 for the 2025 Annual Meeting of Limited Partners to be held on December 15, 2025.

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.

	KNOT OFFSHORE PARTNERS LP

Date: November 13, 2025	By:	/s/ Derek Lowe
		Name:	Derek Lowe
		Title:	Chief Executive Officer and Chief Financial Officer

THIS REPORT ON FORM 6-K IS HEREBY INCORPORATED BY REFERENCE INTO THE FOLLOWING REGISTRATION STATEMENTS:

FORM F-3 (NO. 333-274460) ORIGINALLY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION (“SEC”) ON SEPTEMBER 11, 2023.

FORM F-3 (NO. 333-227942) ORIGINALLY FILED WITH THE SEC ON OCTOBER 23, 2018.

KNOT Offshore Partners LP 6-K