Company: ZHIHF
Filing Date: 2025-05-29
Form Type: 6-K
Source: 0001104659-25-053787
Chunk: 0

Company: Zhihu Inc.
Filing Date: 2025-05-29
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 UNDER

THE SECURITIES EXCHANGE ACT OF 1934

For the month of May 2025

Commission File Number: 001-40253

Zhihu Inc.

(Registrant’s Name)

18 Xueqing Road

Haidian District, Beijing 100083

People’s Republic of China

(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.

<div align='center'>Form 20-FxForm 40-F ¨

EXHIBIT INDEX</div>

| Exhibit No. 
 99.1        |     | Description                                                               
 Press Release—Zhihu Inc. to Hold Annual General Meeting on June 25, 2025  |
|:------------|:----|:--------------------------------------------------------------------------|
| 99.2        |     | Notice of Annual General Meeting                                          |
| 99.3        |     | Circular                                                                  |
| 99.4        |     | Form of Proxy for the Annual General Meeting                              |
| 99.5        |     | Form of Voting Instruction Card for Holders of American Depositary Shares |

<div align='center'>SIGNATURES</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.

| Zhihu Inc. |   |                         |
| By         | : | /s/ Han Wang            |
| Name       | : | Han Wang                |
| Title      | : | Chief Financial Officer |

Date:May 29, 2025