Dorothy Marie Mengering (July 18, 1921 – April 11, 2017) was an American television personality. She was the mother of late-night talk show host David Letterman. She made many telephone and live guest appearances on his shows: Late Night and Late Show.
Following several years of appearing through telephone, Mengering (usually known as "Dave's Mom" or "Dave's Mom Dorothy", with no mention of her surname) became a recurring on-camera guest on Letterman's subsequent Late Show, initially by covering the 1994 Winter Olympics in Lillehammer, Norway.
In 2015, Mengering suffered a stroke, but recovered months later. Mengering died on April 11, 2017 at her home in Carmel, Indiana at the age of 95. She died one day before Letterman's 70th birthday.
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