Mabel Segun (an haife ta a shekara ta 1930) mawaki ce a Nijeriya, marubuciya wasan kwaikwayo kuma marubuciya gajerun labarai da littattafan yara. Ta kuma kasance malama, mai watsa labarai, kuma 'yar wasa. An haife ta a Ondo City, Najeriya, ta halarci Jami'ar Ibadan, ta kammala a 1953 tare da BA a Turanci, Latin da Tarihi. Ta koyar da wadannan darussan a makarantun Najeriya, sannan daga baya ta zama Shugabar Sashen Nazarin Ingilishi da Nazarin Zamani da kuma Mataimakin Shugaban Kwalejin Kwalejin Fasaha ta Kasa, Yaba (Kwalejin Fasaha ta Yaba Yanzu). Littafinta na farko, 'Yar Mahaifina (1965), wanda aka buga a 1965, an yi amfani da shi sosai a matsayin rubutun adabi a makarantu a duk faɗin duniya, kuma an fassara littattafanta zuwa Jamusanci, Danish, Norway da Helenanci. Aikinta yana cikin tarihin 'Ya'yan Afirka (1992). Segun ta dauki nauyin wallafe-wallafen yara a Najeriya ta hanyar kungiyar wallafe-wallafen yara ta Najeriya, wacce ta kafa a 1978, da kuma Cibiyar Tattara bayanai da bincike ta yara, wacce ta kafa a 1990 a Ibadan.