Margaret Atieno Ogola (12 June 1958 – 21 September 2011 was a Kenyan novelist who wrote The River and the Source and its sequel, I Swear by Apollo. The River and the Source follows four generations of Kenyan women in a rapidly changing country and society. The book has been on the KCSE syllabus for many years, and it won the 1995 Commonwealth Writers' Prize for best first book, Africa Region. Ogola completed on her final book, titled Mandate of the people, before her death and it is set to be released posthumously. She was also the recipient of the Familias Award for Humanitarian Service of the World Congress of Families.