United States securities and exchange commission logo

                     July 12, 2022

       Sanjay Mehta
       Chief Financial Officer
       600 Riverpark Drive
       North Reading, MA 01864

                                                        Re: TERADYNE, INC
                                                            Form 10-K for the
Fiscal Year Ended December 31, 2021
                                                            Filed February 23,
                                                            File No. 001-06462

       Dear Mr. Mehta:

              We have completed our review of your filings. We remind you that
the company and its
       management are responsible for the accuracy and adequacy of their
disclosures, notwithstanding
       any review, comments, action or absence of action by the staff.


                     Division of Corporation Finance

                     Office of Life Sciences