Exhibit 99.3* SPECIMEN *1 MAIN STREETANYWHERE PA 99999-9999 VOTE ON INTERNETGo to http://www.vstocktransfer.com/proxy Click on Proxy Voter Login and log-on using the below control number. Voting will be open until 11:59 p.m. (ET) on August 30, 2023.CONTROL # VOTE BY EMAILMark, sign and date your proxy card andreturn it to vote@vstocktransfer.comVOTE IN PERSONIf you would like to vote in person, please attend the Annual General Meeting be held on August 31, 2023, at 10:00 AM, Eastern Time byfollowing the directions on the reverse side.Please Vote, Sign, Date and Return Promptly in the Enclosed Envelope.Annual General Meeting of Shareholders Proxy Card - Vision Marine Technologies Inc.DETACH PROXY CARD HERE TO VOTE BY MAILTHE BOARD UNANIMOUSLY RECOMMENDS A VOTE “FOR” ALL DIRECTOR NOMINEES, AND "FOR" ALL LISTED PROPOSALS.1.To set the number of Directors at six: FOR2.Election of Directors for the ensuing year: AGAINST ABSTAIN FOR ALL NOMINEES LISTED BELOW(except as marked to the contrary below) WITHHOLD AUTHORITY TO VOTE FOR ALL NOMINEES LISTED BELOW INSTRUCTION: TO WITHHOLD AUTHORITY TO VOTE FOR ONE OR MORE INDIVIDUAL NOMINEES STRIKE A LINE THROUGH THENOMINEES' NAMES BELOW:01 Steve P. Barrenechea02 Patrick Bobby03 Luisa Ingargiola04 Alexandre Mongeon05 Carter Murray06 Mario Saucier3.To appoint Ernst & Young LLP as auditors of the Corporation for the ensuing year and to authorize the directors of the Corporation to fix the renumeration to be paid to the auditors for the ensuing year: FOR AGAINST ABSTAIN 4.To approve the amendment to the By-Laws of the Corporation, as more particularly described in the accompanying management information circular of the Corporation. FOR AGAINST ABSTAIN Date Signature Signature, if held jointly Note: This proxy must be signed exactly as the name appears hereon. When shares are held jointly, each holder should sign. When signing as executor, administrator, attorney, trustee or guardian, please give full title as such. If the signer is a corporation, please sign full corporate name by a duly authorized officer, giving full title as such. If signer is a partnership, please sign in partnership name by an authorized person.To change the address on your account, please check the box at right and indicate your new address. * SPECIMEN * AC:ACCT9999 90.00

Vision Marine Technologies Inc.Annual General Meeting of Shareholders August 31, 2023The Corporation is holding the Meeting in a virtual format, which will be conducted via live audio webcast. Registered Shareholders and duly appointed proxy holders will be able to attend the Meeting online, ask questions and vote, all in real time, provided they are connected to the internet and comply with all of the requirements set out herein.Voting will be conducted by virtual ballot.To participate to the Meeting via live audio webcast, connect via the following URL:https://www.virtualmeetingportal.com/visionmarinetechnologies/2023/DETACH PROXY CARD HERE TO VOTE BY MAILVISION MARINE TECHNOLOGIES INC.THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORSThe undersigned, revoking all prior proxies, hereby appoints Alexandre Mongeon and Kulwant Sandher, with full power of substitution, as proxy to represent and vote all common shares of Vision Marine Technologies Inc., (the “Corporation”), which the undersigned will be entitled to vote if personally present at the Annual General Meeting of the Shareholders of the Corporation to be held on August 31, 2023, at 10:00 AM, Eastern Time, upon matters set forth in the Management Information Circular, a copy of which has been received by the undersigned. Each common share is entitled to one vote. The proxies are further authorized to vote, in their discretion, upon such other business as may properly come before the meeting.THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED AS DIRECTED. IF NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR THE SIX DIRECTOR NOMINEES, FOR PROPOSALS 1, 3 AND 4, AND IN THE CASE OF OTHER MATTERS THAT LEGALLY COME BEFORE THE MEETING, AS SAID PROXY(S) MAY DEEM ADVISABLE.PLEASE INDICATE YOUR VOTE ON THE REVERSE SIDE(Continued and to be signed on Reverse Side)