The continuing conflict situation in Nigeria have created over 2 million displaced persons. In 2019, women and children accounted for about 80% of the internally displaced population in the country. Displacement increases the need for reproductive health services. This study explored the reasons for non-use of modern contraceptives among forcibly displaced Bakassi women in Akwa Ibom State, southern Nigeria. Focus group discussions were used to collect data from a convenience sample of 40 women of reproductive age (15–49 years) in two makeshift resettlement camps in the region in January and February 2020. Data were analysed using a qualitative inductive approach, with thematic organization and analysis of the transcribed responses from the focus group discussions. The findings revealed that many of the women were not using modern contraceptives at the time of the study, and the major reasons they gave for non-use were misconceptions, costs, religious beliefs, desire for more children and the inaccessibility and unavailability of contraceptive services. The use of family planning services can be a life-saving intervention in unstable, crisis environments. Programme implementation to address non-use of contraceptive services among women in crisis contexts should target social norm change, reproductive health education, empowerment programmes and health service provision.