EXHIBIT 12(a)



Certification by the Executive Chairman of Telecom Italia S.p.A.



I, Marco Tronchetti Provera, certify that:



| | 1. | I have reviewed this annual report on Form 20-F of Telecom Italia S.p.A.;
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| | 2. | Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made,
in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this annual report;
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| | 3. | Based on my knowledge, the financial statements, and other financial information included in this annual report, fairly present in all material respects the financial
condition, results of operations and cash flows of the registrants as of, and for, the periods presented in this annual report;
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| | 4. | The companys other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules
13a-14 and 15d-14) for the registrants and we have:
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| | (a) | designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision to ensure that material
information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this annual report is being prepared;
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| | (b) | [Paragraph omitted pursuant to SEC Release Nos. 33-8238 and 34-47986]
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| | (c) | evaluated the effectiveness of the companys disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure
controls and procedures, as of the end of the period covered by this report based on such evaluation; and
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| | (d) | disclosed in this report any change in the companys internal control over financial reporting that occurred during the period covered by the annual report that has
materially affected, or is reasonably likely to materially affect, the companys internal control over financial reporting; and
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| | 5. | The companys other certifying officers and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the companys
auditors and the audit committee of companys board of directors (or persons performing the equivalent function):
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| | (a) | all significant deficiencies in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the companys
ability to record, process, summarize and report financial data and have identified for the companys auditors any material weaknesses in internal controls; and
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| | (b) | any fraud, whether or not material, that involves management or other employees who have a significant role in the companys internal control over financial
reporting.
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By:

/s/    MARCO TRONCHETTI
PROVERAName:

Marco Tronchetti ProveraTitle:

Executive Chairman




May 19,
2006