Ilg (IILG) 10-K 2009 FY Annual report

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Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

        We consent to the incorporation by reference in Registration Statement (Form S-3 No. 333-152699) and related Prospectus of Interval Leisure Group, Inc. of our reports dated March 11, 2010, with respect to the consolidated financial statements and schedule of Interval Leisure Group, Inc. and subsidiaries and the effectiveness of internal control over financial reporting of Interval Leisure Group, Inc. and subsidiaries, included in this Annual Report (Form 10-K) for the year ended December 31, 2009.

/s/ ERNST & YOUNG LLP
Certified Public Accountants

Miami, Florida
March 11, 2010

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Exhibit 23.1