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 March 2026

Commission File Number: 001-34936

Noah Holdings Limited

(Registrant’s name)

No. 1226, South Shenbin Road, Minhang District,

Shanghai, People’s Republic of China

+86 (21) 8035-8292

(Address of principal executive office)

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 ¨

EXHIBIT INDEX

Exhibit 99.1 | Next Day Disclosure Return Dated March 5, 2026
Exhibit 99.2 | Monthly Return for Equity Issuer and Hong Kong Depositary Receipts listed under Chapter 19B of the Exchange Listing Rules on Movements in Securities

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.

| Noah Holdings Limited
| By: | /s/ Qing Pan
| Name: | Qing Pan
| Title: | Chief Financial Officer
Date: March 6, 2026 |