Maria Keogh Semple (born May 21, 1964) is an American novelist and screenwriter. She is the author of This One Is Mine (2008), Where'd You Go, Bernadette (2012), and Today Will Be Different (2016). Her television credits include Beverly Hills, 90210, Mad About You, Saturday Night Live, Arrested Development, Suddenly Susan, and Ellen. She is a 2013 recipient of the Alex Awards.