Preterm births defined as delivery prior to 37 completed weeks of gestation is a global concern. Nigeria contributed 10% to all newborn deaths in the world in 2016, and about 28% of the neonatal deaths were attributed to preterm births in Nigeria. There has been an increase in the preterm birth rate globally since 2005 and this is mainly due to late preterm births at 34 to 36 weeks plus 6 days of gestation. Recent findings have shown an increased risk for neonatal morbidity and mortality in this category of preterm newborns. The prevalence of late preterm births is not known in Abuja which is located in the central part of Nigeria, unlike in southern and eastern parts of Nigeria. The present study was therefore conducted to determine the prevalence of late preterm births, risk factors associated with late preterm delivery, as well as document related morbidity and mortality during the neonatal period at the National Hospital, Abuja. This was a prospective observational study that spanned a period of one year. All deliveries during the period of the present study at the National Hospital, were documented and newborns that met the inclusion criteria were consecutively enrolled into the study. Information obtained using a pretested questionnaire included gestational age at birth, sex, birthweight, risk factors for preterm birth, duration of hospital stay, morbidity and the outcome in the first 28 days of admission. Maternal age, parity, medical conditions if present, antenatal characteristics of current and previous pregnancies, economic and educational status were also obtained and documented. The gestational ages were assessed using an early pregnancy ultrasound scan and the New Ballard Score.