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                                                                   EXHIBIT 23(a)


                        CONSENT OF ERNST AND YOUNG, LLP,
                              INDEPENDENT AUDITORS


     We consent to the incorporation by reference in the registration statement
on Form S-8 of Comerica Incorporated, pertaining to the registration of 500,000
shares of common stock with respect to the Comerica Incorporated Preferred
Savings Plan, of our report dated January 22, 1997, with respect to the
consolidated financial statements of Comerica Incorporated, incorporated by
reference in the Annual Report (Form 10-K) for the year ended December 31, 1996
filed with the Securities and Exchange Commission.







March 31, 1997



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