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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                  SCHEDULE 13D
                                 (Rule 13d-101)

                               (Amendment No. 19)

                         ------------------------------

                              TELECOM ITALIA S.P.A.
                                (Name of Issuer)

        ORDINARY SHARES OF EURO 0.55 PAR VALUE EACH                 87927W10
             (Title of class of securities)                      (CUSIP number)

                           ALEXANDER ROSENZWEIG, ESQ.
                     VICE PRESIDENT AND CHIEF LEGAL OFFICER
                           PIRELLI NORTH AMERICA, INC.
                              246 STONERIDGE DRIVE
                                    SUITE 400
                         COLUMBIA, SOUTH CAROLINA 29210
                                 (803) 951-1040

                                 WITH A COPY TO:

                              ELLEN J. ODONER, ESQ.
                           WEIL, GOTSHAL & MANGES LLP
                                767 FIFTH AVENUE
                            NEW YORK, NEW YORK 10153
                                 (212) 310-8000
            (Name, address and telephone number of person authorized
                     to receive notices and communications)

                                  MAY 24, 2003
             (Date of event which requires filing of this statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
[ ].

           Note: Schedules filed in paper format shall include a signed original
           and five copies of the schedule, including all exhibits. See Rule
           13d-7 for other parties to whom copies are to be sent.

                         (Continued on following pages)

                               (Page 1 of 6 Pages)





-----------------------------------------------------------------------                ---------------------------------------------
CUSIP No.  87927W10                                                          13D                                       Page 2 of 6
-----------------------------------------------------------------------                ---------------------------------------------
                                                                                                        
----------------------------     ---------------------------------------------------------------------------------------------------
             1                   NAME OF REPORTING PERSON                                 PIRELLI S.p.A.
                                 I.R.S. IDENTIFICATION NO.                                Not Applicable
                                 OF ABOVE PERSON
----------------------------     ---------------------------------------------------------------------------------------------------
             2                   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:                                    (a) [X]
                                                                                                                      (b) [ ]
----------------------------     ---------------------------------------------------------------------------------------------------
             3                   SEC USE ONLY
----------------------------     ---------------------------------------------------------------------------------------------------
             4                   SOURCE OF FUNDS:                                                             BK, WC
----------------------------     ---------------------------------------------------------------------------------------------------
             5                   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                                 PURSUANT TO ITEM 2(d) OR 2(e):                                                            [ ]
----------------------------     ---------------------------------------------------------------------------------------------------
             6                   CITIZENSHIP OR PLACE OF ORGANIZATION:                                                  Italy
---------------------------- --- ----------------------     ------------------------------------------------------------------------
                                           7                SOLE VOTING POWER:                                            0
          NUMBER OF
           SHARES

        BENEFICIALLY
          OWNED BY

            EACH
          REPORTING

         PERSON WITH
----------------------------
                                 ----------------------     ------------------------------------------------------------------------
                                           8                SHARED VOTING POWER:                                   2,891,656,682
                                                                                                                   (See Item 5)
----------------------------
                                 ----------------------     -----------------------------------------------------------------------
                                           9                SOLE DISPOSITIVE POWER:                                     0

----------------------------
                                 ----------------------     ------------------------------------------------------------------------
                                          10                SHARED DISPOSITIVE POWER:                              2,891,656,682
                                                                                                                   (See Item 5)
----------------------------
                                 ---------------------------------------------------------------------------------------------------
            11                   AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING PERSON:                         2,891,656,682
                                                                                                                  (See Item 5)
                                 ---------------------------------------------------------------------------------------------------
----------------------------
            12                   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
                                 CERTAIN SHARES:                                                                        [ ]
                                 ---------------------------------------------------------------------------------------------------
----------------------------
            13                   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):                                    54.96%
                                                                                                                     (See Item 5)
----------------------------     --------------------------------------------------------------- -----------------------------------
            14                   TYPE OF REPORTING PERSON:                                       CO



                                       2

-----------------------------------------------------------------------                ---------------------------------------------
CUSIP No.  87927W10                                                          13D                                     Page 3 of 6
-----------------------------------------------------------------------                ---------------------------------------------

----------------------------     -------------------------------------------------------- ------------------------------------------
             1                   NAME OF REPORTING PERSON                                 Olimpia S.p.A.
                                 I.R.S. IDENTIFICATION NO.                                Not Applicable
                                 OF ABOVE PERSON
----------------------------     ---------------------------------------------------------------------------------------------------
             2                   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:                                       (a) [X]
                                                                                                                         (b) [ ]
----------------------------     ---------------------------------------------------------------------------------------------------
             3                   SEC USE ONLY
----------------------------     ---------------------------------------------------------------------------------------------------
             4                   SOURCE OF FUNDS:                                                             WC
----------------------------     ---------------------------------------------------------------------------------------------------
             5                   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
                                 PURSUANT TO ITEM 2(d) OR 2(e):                                                               [ ]
----------------------------     ---------------------------------------------------------------------------------------------------
             6                   CITIZENSHIP OR PLACE OF ORGANIZATION:                                                    Italy
---------------------------- --- ----------------------     ------------------------------------------------------------------------
                                           7                SOLE VOTING POWER:                                             0
          NUMBER OF
           SHARES

        BENEFICIALLY
          OWNED BY

            EACH
          REPORTING

         PERSON WITH
----------------------------
                                 ----------------------     ------------------------------------------------- ----------------------
                                           8                SHARED VOTING POWER:                                     See Item 5

----------------------------
                                 ----------------------     ------------------------------------------------- ----------------------
                                           9                SOLE DISPOSITIVE POWER:                                       0

----------------------------
                                 ----------------------     ------------------------------------------------------------------------
                                          10                SHARED DISPOSITIVE POWER:                                See Item 5

----------------------------     --------------------------------------------------------------------------------------------------
            11                   AGGREGATE AMOUNT BENEFICIALLY OWNED BY REPORTING PERSON:                            See Item 5
                                 ---------------------------------------------------------------------------------------------------
----------------------------
            12                   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES:                        [ ]
----------------------------     ---------------------------------------------------------------------------------------------------
            13                   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):                                 See Item 5
----------------------------     --------------------------------------------------------------- -----------------------------------
            14                   TYPE OF REPORTING PERSON:                                       CO



                                       3

           This Amendment No. 19 amends the Statement on Schedule 13D dated
August 9, 2001, as amended (as previously amended, the "Statement on Schedule
13D"), filed by Pirelli S.p.A., a company incorporated under the laws of the
Republic of Italy ("Pirelli"), and, commencing with Amendment No. 1 thereto,
Olimpia S.p.A., a company incorporated under the laws of the Republic of Italy
(the "Purchaser" or "Olimpia"), with respect to the ordinary shares, euro 0.55
par value per share, of Telecom Italia S.p.A., a company incorporated under the
laws of the Republic of Italy. Capitalized terms used in this Amendment without
definition have the meanings ascribed to them in the Statement on Schedule 13D.

           Pirelli, Olimpia, Edizione Holding and Edizione Finance (as defined
below), Hopa, UCI and BCI are members of a group with respect to the Telecom
Italia Shares. This Amendment constitutes a separate filing on Schedule 13D by
Pirelli and Olimpia in accordance with Rule 13d-1(k)(2) under the Securities
Exchange Act of 1934. Pirelli and Olimpia are responsible solely for the
information contained in their separate filing, except that information
contained in the Statement on Schedule 13D concerning any director or officer of
Olimpia nominated by Edizione Holding, Hopa, UCI or BCI has been provided by the
nominating person.

ITEM 4.  PURPOSE OF TRANSACTION
         ----------------------

           A shareholders' meeting of Telecom Italia held on May 24, 2003
resolved to approve the Olivetti Merger (as that term is defined in Amendment
No. 16 to the Statement on Schedule 13D). A copy of a press release issued by
Telecom Italia concerning, inter alia, the approval of the Olivetti Merger by
Telecom Italia's shareholders is filed as Exhibit 47. A shareholders' meeting of
Olivetti held on May 26, 2003 also resolved to approve the Olivetti Merger.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS
         --------------------------------

47.  Press release of Telecom Italia S.p.A., dated as of May 24, 2003

48.  Power of Attorney, dated May 14, 2003, appointing Ms. Giovanna Magrini as
     attorney for Pirelli S.p.A. [English translation]




                                       4

                                   SIGNATURES
                                   ----------

           After reasonable inquiry and to the best knowledge and belief of the
undersigned, the undersigned certify that the information set forth in this
statement is true, complete and correct.

Date:      May 28, 2003

                                        PIRELLI S.p.A.


                                        By:  /s/ Giovanna Magrini
                                           -------------------------------------
                                           Name:  Giovanna Magrini
                                           Title: Attorney-in-fact





                                        OLIMPIA S.p.A.


                                        By:  /s/ Luciano Gobbi
                                            ------------------------------------
                                            Name:  Luciano Gobbi
                                            Title: Director and Attorney-in-fact




                                       5

                                  EXHIBIT INDEX
                                  -------------


      Exhibit No.
      -----------

          47.       Press release of Telecom Italia S.p.A., dated as of May 24,
                    2003

          48.       Power of Attorney, dated May 14, 2003, appointing Ms.
                    Giovanna Magrini as attorney for Pirelli S.p.A. [English
                    translation]