<ARTICLE>                     5
<LEGEND>
    This schedule  contains summary  financial  information  extracted  from the
condensed  consolidated  balance  sheet  at  April  2,  2000  and the  condensed
consolidated statement of income for the three months ended April 2, 2000 and is
qualified in its entirety by reference to such financial staements.
</LEGEND>
<CIK>          0000097210
<NAME>         Teradyne, Inc.
<MULTIPLIER>                                   1,000
<CURRENCY>                                     U.S. Dollars

                             
<PERIOD-TYPE>                   3-Mos
<FISCAL-YEAR-END>                              DEC-31-2000
<PERIOD-START>                                 JAN-01-2000
<PERIOD-END>                                   APR-02-2000
<EXCHANGE-RATE>                                1.00
<CASH>                                         130,195
<SECURITIES>                                   112,907
<RECEIVABLES>                                  433,785
<ALLOWANCES>                                   5,536
<INVENTORY>                                    308,283
<CURRENT-ASSETS>                               1,065,722
<PP&E>                                         1,027,616
<DEPRECIATION>                                 507,273
<TOTAL-ASSETS>                                 1,752,629
<CURRENT-LIABILITIES>                          435,946
<BONDS>                                        0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       21,587
<OTHER-SE>                                     1,272,456
<TOTAL-LIABILITY-AND-EQUITY>                   1,294,043
<SALES>                                        648,131
<TOTAL-REVENUES>                               648,131
<CGS>                                          348,840
<TOTAL-COSTS>                                  496,821
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             425
<INCOME-PRETAX>                                155,847
<INCOME-TAX>                                   46,754
<INCOME-CONTINUING>                            109,093
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   109,093
<EPS-BASIC>                                  0.63
<EPS-DILUTED>                                  0.60