UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of
The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)
March 12, 2009

ENTERPRISE FINANCIAL SERVICES
CORP

(Exact name of registrant as specified in its charter)

Delaware  001-15373  43-1706259 
(State or Other Jurisdiction  (Commission  (IRS Employer 
of Incorporation)  File Number)  Identification No.) 

150 N. Meramec, St. Louis, Missouri  63105 
(Address of principal executive offices)  (Zip Code) 

Registrant’s telephone number, including area code

(314) 725-5500

Not applicable
(Former name or former address, if changed since last report) 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On March 12, 2009, and March 13, 2009, respectively, Directors Kevin C. Eichner and Robert E. Saur notified the Company that they would not stand for re-election as directors at the annual meeting to be held on April 30, 2009.

Item 9.01 Financial Statements and Exhibits.

(d)        Exhibits 
 
  99.1 Text of Press Release, dated March 17, 2009. 

SIGNATURES

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.

    ENTERPRISE FINANCIAL SERVICES CORP  
 
    By:  
           
Date: March 17, 2009    /s/ Deborah N. Barstow    
 
         Deborah N. Barstow  
         Senior Vice President and Controller