This paper examines the determinants of contraceptive method choice among unmarried adolescents in Nigeria. Previous studies in Nigeria have focused on the predicators of contraceptive use among married adolescents with limited emphasis in understanding the shift in contraceptive method mix among unmarried adolescents considering the dynamics of this population. This study is based on the secondary data analysis of the 2003-2013 Nigeria Demographic Health Surveys. A total of 17,767 unmarried adolescents aged 15-19 in Nigeria were selected for the analysis. Using a multinomial logistic regression, the study found that spatial, demographic and socio-cultural factors are significantly associated with condom use as opposed to non-use of contraceptives among never married adolescents. Compared to adolescent girls, the adolescent boys are more likely to use condom than not using any method of contraceptive and are less likely to use other methods of contraceptives than no method. Those who live in the Northern part of the country are less likely to use condom than those in the Southern part. Compared to those who are from richest household, those who are from poorer household are 37% more likely to use condom than not using any method of contraceptive. Interestingly, compared to adolescents who live in a household headed by older adults, those who live in a youth headed household are 1.5 times more likely to use condom and 3 times more likely to use other method of contraceptives than not using a method. Mass media exposure has no significant effect on the use of condom. These findings have implication for contraceptive delivery in Nigeria and show the need to target adolescents who live in the Northern region of the country and to educate girls on the use of condom considering the dual protection if offers.