1 EXHIBIT 23 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in the 1981 Stock Option Plan Registration Statement No. 2-76121 on Form S-8, the 1991 Stock Option Plan Registration No. 33-41318 on Form S-8 and the Key Employee Stock Grant Plan Registration Statement No. 33-50442 on Form S-8 of our report dated January 24, 1997, appearing in this Annual Report on Form 10-K of CVB Financial Corp. for the fiscal year ended December 31, 1997. /S/Deloitte & Touche LLP Deloitte & Touche LLP Los Angeles, California March 6 1998