"Your Memory Ain't What It Used to Be" is a song recorded by American country music artist Mickey Gilley. It was released in December 1985 as the second and final single from his album I Feel Good About Lovin' You. The song reached number 5 on the U.S. Billboard Hot Country Singles chart and number 2 on the Canadian RPM Country Tracks chart in Canada. It was written by Mary Fielder, Kim Morrison and Dickey Betts.