Maria Olivia Daytia-Prats (born October 20, 1981), better known by the screen name Isabel Oli, is a Filipina model and actress.
In 2003, she started her acting career in ABS-CBN via It Might Be You and Maalaala Mo Kaya episode with Baron Geisler and her soon-to-be spouse John Prats, before moving to GMA Network in 2005.
It was her similarly named role of Isabel, the leading lady to matinee idol, Richard Gutierrez in Sugo, that launched her to full stardom.
Her face currently graces the covers of glossy magazines, billboards and print ads, and appears regularly on GMA Network shows.
The latter portrayed the antagonistic Rosita, originally played by award-winning actress Lorna Tolentino, in Sine Novela: Maging Akin Ka Lamang.