CERTIFICATION PURSUANT TO RULE 30A-2(B) UNDER THE 1940 ACT AND SECTION 906 OF THE SARBANES-OXLEY ACT I, George R. Aylward, President of The Zweig Fund, Inc. (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant containing the financial statements (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: September 9, 2011 /s/ George R. Aylward ------------------------------ George R. Aylward, President (principal executive officer) I, W. Patrick Bradley, Treasurer of The Zweig Fund, Inc. (the "Registrant"), certify that: 1. The Form N-CSR of the Registrant containing the financial statements (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Registrant. Date: September 9, 2011 /s/ W. Patrick Bradley ------------------------------ W. Patrick Bradley, Treasurer (principal financial officer)