2006 ANNUAL REPORT

**EXHIBIT 31.1**

**CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER(EXCHANGE ACT RULE 13-A-14(A)**

I, Robert A. Altieri, President and ChiefExecutive Officer, certify that:

(1) I have reviewed this annual reporton Form 10-K of Carrollton Bancorp;

(2) Based on my knowledge, this reportdoes not contain any untrue statement of a material fact or omit to state amaterial fact necessary to make the statements made, in light of thecircumstances under which the statements were made, not misleading with respectto the period covered by this report;

(3) Based on my knowledge, thefinancial statements, and other financial information included in this report,fairly present in all material respects the financial condition, results ofoperations and cash flows of the registrant as of, and for, the periods presentedin this report;

(4) The registrant’s other certifyingofficers and I are responsible for establishing and maintaining disclosurecontrols and procedures (as defined in Exchange Act Rules 13a-15(e) and 15-15(c)for the registrant and have;

(a) designed such disclosure controlsand procedures, or caused such disclosure controls and procedures to bedesigned under our supervision, to ensure that material information relating tothe registrant, including its consolidated subsidiaries, is made known to us byothers within those entities, particularly during the period in which thisreport is being prepared;

(b) designed such internal control overfinancial reporting, or caused such internal controls over financial reportingto be designed under our supervision, to provide reasonable assurance regardingthe reliability of financial reporting and the preparation of financialstatements for external purposes in accordance with generally acceptedaccounting principals;

(c) evaluated the effectiveness of theregistrant’s disclosure controls and procedures and presented in this reportour conclusions about the effectiveness of this disclosure controls andprocedures, as of the end of the period covered by this report based on suchevaluation; and

(d) disclosed in this report any changein the registrant’s internal control over financial reporting that occurredduring the registrant’s fourth fiscal quarter that has materially affected, oris reasonably likely to materially affect, the registrant’s internal controlover financial reporting; and

(5) The registrant’s other certifyingofficers and I have disclosed to the registrant’s auditors and the registrant’saudit committee of the board of directors:

(a) all significant deficiencies andmaterial weaknesses in the design or operation of internal controls overfinancial reporting which could adversely affect the registrant’s ability torecord, process, summarize and report financial information; and

(b) any fraud, whether or not material,that involves management or other employees who have a significant role in theregistrant’s internal controls over financial reporting.
|                          |   | /s/ ROBERT A. ALTIERI                   |
|--------------------------|--------|-----------------------------------------|
|                     |   | Robert A.  Altieri                      |
| Date: March 1, 2007 |   | *President and Chief Executive Officer* |

 

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