Background: The amniotic fluid (AF) is a part of the baby’s life support system. It aids in the development of muscles, limbs, lungs and digestive system. Amniotic fluid is produced soon after the amniotic sac is formed at about 12 days after conception. Objective: To find out factor associated and neonatal outcome with oligohydramnios. Methods: This was a cross-sectional observational study conducted in the Indoor patient Department of Obstetrics & Gynecology in Dhaka Medical College Hospital, Dhaka, Bangladesh from January to June 2015. Detailed information was obtained in each case according to protocol. Complete history was taken from patients and their accompanying attendants. Thorough clinical examination was done. Relevant investigations report was collected. Collected data was classified, edited, coded and entered into the computer for statistical analysis by using SPSS-19. Results: Out of 50 cases mean age was 24.56 (±4.71) years. Majority 27(54%) delivered by caesarean section and 23(46%) were delivered by normal vaginal delivery. Main indication for caesareansection25.93% fetal distress, 18.52%malpresentation, 18.52% previous LSCS and 37.03% severe Oligohydramnios. Prevalence of SGA babies (62%) is almost double than AGA babies (38%). Factor associated with oligohydramnios were PIH, malpresentation, chronic abruption, prolong pregnancy, post term pregnancy, fetal congenital anomalies were 16%,04%, 18%, 28%, 06%, 20% and 18% respectively. The Neonatal outcomes, including Low birth weight, IUGR babies, perinatal death, APGAR score< 7 at 5 min, admission in neonatal ward etc. Among 50 babies, low birth babies were 62%, APGAR score < 7 was found in 18% of babies, 26% babies were admitted in neonatal intensive care unit and 1 baby born with congenital anomaly (2%). Conclusion: In conclusion factor associated with oligohydramnios were PIH, malpresentation, chronic abruption, prolong pregnancy, post term pregnancy, fetal congenital anomalies. Most of the .......