UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

__________________

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the Month of: ~~July~~November 2006

000-29144

(Commission File Number)

__________________

ILOG S.A.

(Translation of registrant’s name into English)

9 rue de Verdun BP 85

94253 Gentilly, France

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F:

Form 20-F |X| Form 40-F |_|

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): |_|

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): |_|

Indicate by check mark whether by furnishing the information contained on this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes |_| No |X|

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b):

82-_____.

On ~~July~~November 57, 2006, ILOG S.A. issued a press release ~~reporting~~listing information published during the ~~biannual~~12 ~~situation~~last ~~of the liquidity contract entered into between ILOG S~~months. A. ~~and ODDO. A~~ copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

Special Note Regarding Forward-Looking Statements

All of the statements included in the ~~exhibit~~exhibits incorporated by reference herein, and the information referenced therein, as well as oral statements that may be made by us or by officers, directors or employees acting on our behalf, that are not statements of historical fact, constitute or are based upon "forward-looking statements" within the meaning of the United States Securities laws that involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied in the forward-looking statements. Among the factors that could cause our actual results to differ materially are those risks identified in “Item 3. Key Information—Risk Factors,” “Item 4. Information on the Company” and “Item 5. Operating and Financial Review and Prospects” of the Company’s most recent Annual Report on Form 20-F /A filed with the U.S. Securities and Exchange Commission (the “SEC”) ~~and~~ and its other filings and submissions with the SEC, including, without limitation, quarterly fluctuations in our operating results; ~~competition~~and ~~in our industry;~~ the ~~extended~~price ~~length~~ of our ~~sales~~shares ~~cycle~~or ADSs, factors affecting ~~which~~any ~~impacts~~one of our ~~ability~~three toproduct lines, the ~~forecast~~need ~~product~~to ~~lines;~~have sufficient consultants available to staff an unpredictable demand for our consulting ~~dependence~~services, onlost ~~certain~~revenues ~~major~~due ~~independent~~to ~~software~~consultants ~~vendors;~~with ~~our~~specialized expertise occupied on competing consulting engagements, our investments in vertical products which carry ~~markets;~~high implementation costs ~~the~~that ~~increasing~~we discount ~~number~~in order to promote customer purchases, intense competition and consolidation in our industry, the extended length and variability of our sales cycle and concentration of transactions in ~~fixed~~the ~~price~~final ~~consulting~~weeks ~~agreements;~~in ~~whether~~the ~~our~~quarter, which ~~investment~~could result in ~~our~~substantial ~~sales~~fluctuations ~~and~~in ~~marketing~~operating ~~forces~~results isand ~~adequate~~may ~~under~~prevent accurate forecasting of financial results, the increasing number ~~circumstances;~~of higher risk fixed price consulting engagements, our dependence on certain major independent software vendors, changing market and technological requirements;, our ability to provide professional services activities that satisfy customer expectations;, the impact of currency fluctuations on our profitability, changes in tax laws or an adverse tax audit, errors in our software products; , the loss of key personnel; , logistical difficulties, cultural differences, product localization costs, import and tariff restrictions, adverse foreign tax consequences and fluctuations in currencies resulting from our global operations;, the ~~changes~~impact ~~in tax laws or an adverse tax audit;~~ of intellectual property infringement disputes, our ~~significant~~ heavy dependence on our proprietary technology~~; the~~, risks ~~impact~~related ofto ~~intellectual~~acquisitions ~~property~~and ~~infringement~~minority ~~disputes;~~ investments, the impact of dilutive share issuances, or the incurrence of debt and contingent liabilities and write-offs resulting from acquisitions; or minority investments, the limitations imposed by French law or our by-laws that may prevent or delay an acquisition by ILOG using its Shares, changes in accounting principles; that could affect our operating profits and reported results, and other matters not yet known to us or not currently considered material by us. All written and oral forward-looking statements attributable to us, or persons acting on our behalf, are qualified in their entirety by these cautionary statements. Readers are cautioned not to place undue reliance on these forward-looking statements. Unless required by law, the Company undertakes no obligation to revise these forward-looking statements to reflect new information or events, circumstances, changes in expectations or otherwise that arise after the date hereof.

Exhibit

Description

99.1 Press release, ~~dated~~issued ~~July~~November 57, 2006, ~~issued~~ by ILOG S.A. ~~reporting~~listing ~~the~~information ~~biannual~~published ~~situation~~during of the ~~liquidity~~12 ~~contract~~last ~~entered into between ILOG S.A. and ODDO.~~months

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

ILOG S.A.

By:	/s/ Jerome Arnaud Name: Jerome Arnaud Title: Chief Financial Officer

Date: ~~July~~November 713, 2006

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