<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
      Legend - This schedule contains summary financial information (prepared in
accordance with GAAP in Canada)  extracted from the accounting  records of Mitel
Corporation and included in the Consolidated Statements of Income for the period
ended September 29, 2000 and the Consolidated Balance Sheets as at September 29,
2000 and is qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK>                         0000352435
<NAME>                        Mitel Corporation
<MULTIPLIER>                                   1,000
<CURRENCY>                                     Canadian Dollars

<S>                                            <C>
<PERIOD-TYPE>                                  6-MOS
<FISCAL-YEAR-END>                              MAR-30-2001
<PERIOD-END>                                   SEP-29-2000
<EXCHANGE-RATE>                                1.5070           <F1>
<CASH>                                         82,195
<SECURITIES>                                   145,379
<RECEIVABLES>                                  295,048
<ALLOWANCES>                                   6,649
<INVENTORY>                                    190,111
<CURRENT-ASSETS>                               749,425
<PP&E>                                         849,893
<DEPRECIATION>                                 410,680
<TOTAL-ASSETS>                                 1,483,290
<CURRENT-LIABILITIES>                          275,717
<BONDS>                                        208,907
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    36,922
<COMMON>                                       633,961
<OTHER-SE>                                     287,307
<TOTAL-LIABILITY-AND-EQUITY>                   1,483,290
<SALES>                                        688,600
<TOTAL-REVENUES>                               688,600
<CGS>                                          352,300
<TOTAL-COSTS>                                  352,300
<OTHER-EXPENSES>                               285,500
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             10,700
<INCOME-PRETAX>                                46,500
<INCOME-TAX>                                   18,400
<INCOME-CONTINUING>                            28,100
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   28,100
<EPS-BASIC>                                    0.23             <F2>
<EPS-DILUTED>                                  0.22             <F3>

<FN>
F1    The  foreign  exchange  rate of  1.5070  should be used to  translate  the
      balance sheet items from Canadian Dollars (figures above) to U.S. Dollars.
      The six month moving  average  foreign  exchange rate of 1.47845 should be
      used to  translate  the  income  statement  items  from  Canadian  Dollars
      (figures above) to U.S. Dollars.

F2    The  figure  quoted  is  EPS-Basic  under  Canadian   Generally   Accepted
      Accounting Principles.

F3    The figure quoted is EPS-Fully Diluted under Canadian  Generally  Accepted
      Accounting Principles.
</FN>


</TABLE>