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 2023            Commission File Number:001-15014

SUN LIFE FINANCIAL INC.
(the “Company”)
                    
                                            
(Translation of registrant’s name into English)

1 York Street, 31st Floor, Toronto, Ontario M5J 0B6
                                                
                    (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            Form 40-F    X

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ____

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ____
                                                
Exhibit


99.1    Press Release dated May 11, 2023 – Sun Life Reports March 31, 2023 Results


SIGNATURE

Pursuant to the requirement 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.

                        Sun Life Financial Inc.
                        (Registrant)

Date: May 11, 2023                By    /s/ “Tracie Allan”            
                            Tracie Allan
    Assistant Vice-President & Managing Counsel




Exhibit 99.1

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