1 Exhibit 23.3 CONSENT OF KELLER & COMPANY, INC. We consent to the inclusion in this Pre-Effective Amendment No. 1 to the Registration Statement on Form S-4 of Ohio Valley Banc Corp of our opinion set forth as Annex B to the Prospectus/Proxy Statement, which is part of the Registration Statement, and to the reference to our firm and summarization of our opinion in the Prospectus/Proxy Statement under the captions "Opinion of Keller & Company, Inc." /s/ Keller & Company, Inc. -------------------------------- Keller & Company, Inc. Dublin, Ohio October 12, 1998