Background: Youths are referred to as people of age group 15 to 24 years, and with significant physiological, psychological and social changes that place their lives at high risk. Risky sexual behaviour is the act of indulging in unprotected sexual intercourse through oral, anal and virginal sex, having multiple sexual partners, high risk and same sex partners. The aim of the study was to determine the risky sexual behaviour among youths in selected communities in Obio-Akpor and Ikwerre Local Government Areas of Rivers State, Nigeria. Materials and Methods: This was a descriptive cross-sectional study among youths, 15-24 years in selected communities in Obi-Akpor and Ikwerre Local Government Areas of Rivers State, Nigeria. The sample size of 317 participants was recruited for this study. A multistage sampling method was used to select participants from Alakahia, Choba and Aluu communities. Inclusion criteria were males and females aged between 15 and 24 years, and must have lived in these Local Governments Areas for at least one year. The data was collected using a self-administered questionnaire. Data was analysed using SPSS version 20. A descriptive analysis, chi-square test were performed, and regression analysis was performed to establish the strength of association between the predictors and the variables, statistical significance was set at p ≤ 0.05. Ethical