Company: BIP-PB
Filing Date: 2025-08-07
Form Type: 6-K
Source: 0001628280-25-038498
Chunk: 0

Company: Brookfield Infrastructure Partners L.P.
Filing Date: 2025-08-07
Form: 6-K
Chunk 0
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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 August 2025

#### Commission file number 001-33632

#### BROOKFIELD INFRASTRUCTURE PARTNERS L.P.
<div align='center'>(Exact name of Registrant as specified in its charter)</div>

#### 73 Front Street, Fifth Floor

#### Hamilton, HM 12

#### Bermuda
<div align='center'>(Address of principal executive office)</div>

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

<div align='center'>Form 20-F ☒ Form 40-F ☐</div>

The information contained in Exhibit 99.1 of this Form 6-K is incorporated by reference into the registrant’s following registration statements on Form F-3 (File Nos. 333-278737, 333-278529, 333-167860 and 333-278738-01).

The following documents, which are attached as exhibits hereto, are incorporated by reference herein:

| Exhibit 
 99.1    |     | Title                                                                                                                    
 Brookfield Infrastructure Partners L.P.’s interim report for the quarter ended June 30, 2025                             |
|:--------|:----|:-------------------------------------------------------------------------------------------------------------------------|
| 99.2    |     | Certification of Samuel Pollock, Chief Executive Officer, Brookfield Infrastructure Group L.P., pursuant to Canadian law |
| 99.3    |     | Certification of David Krant, Chief Financial Officer, Brookfield Infrastructure Group L.P., pursuant to Canadian law    |

### SIGNATURES
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: |     | August 6, 2025 |     | BROOKFIELD INFRASTRUCTURE PARTNERS L.P.,by its general partner, BROOKFIELDINFRASTRUCTURE PARTNERS LIMITED 
 By:                                                                                                       |     | /s/WILLIAMCOX     |
|:------|:----|: