Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 (6-k)

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of December 2020

Commission file Number 001-36458

Neovasc Inc.

(Translation of registrant's name into English)

Suite 5138 -13562 Maycrest Way

Richmond, British Columbia, Canada, V6V 2J7

(Address of principal executive offices)

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

Form20-F x Form40-F ¨

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): ¨

DOCUMENTS INCLUDED AS PART OF THIS REPORT

Exhibit 5.1

Opinion Letter of Blake, Cassels & Graydon, dated December 10, 2020.

Exhibit 5.1 of this Report on Form 6-K is incorporated by reference, as an exhibit, into the Registration Statement on Form F-3 of the Registrant, which was originally filed with the Securities and Exchange Commission on August 13, 2020 (File No. 333-245385), and the Registration Statement on Form S-8 of the Registrant, which was originally filed with the Securities and Exchange Commission on July 6, 2018 (File No. 333-226075).

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.