Objective to cross-culturally adapt the Rosenbaum Concussion Knowledge and Attitudes Survey - Student Version (RoCKAS-ST) into Arabic (RoCKAS-ST-A), and to evaluate its psychometric properties (i.e., face validity, internal consistency and test-retest reliability) of the Arabic version 16 of the RoCKAS-ST (RoCKAS-ST-A). Design cross-cultural and preliminary validation of the of the Arabic version of the Rosenbaum Concussion Knowledge and Attitudes Survey - Student Version (RoCKAS-ST-A). Setting youth clubs and after-school activities centers around Kuwait. Participants Adolescent and young adults, aged 13–20 years old, both sexes. Independent Variables age, sex, and type of sport (if any). Main Outcome measure RoCKAS-ST-A questionnaire answers and demographics of participants. Results Two hundred and thirty-four adolescent and young adults ( n = 234) participated in this study (mean age = 15.95, SD = 1.92). More than half of the participants were males ( n = 163, 69.66%). The internal consistency for the concussion knowledge index (CKI) and concussion attitude index (CAI) ranged between fair and good (α = 0.31 & 0.97, respectively). The test-retest reliability of CKI score was 0.79 (95% CI = 0.42–0.92, P < 0.05) and of CAI was 0.86 (95% CI =0.66–0.94, P < 0.05). The average time between the 2 tests was 9.35 ± 2.44 days. Conclusion RoCKAS-ST-A is a reliable, valid, and feasible tool to examine the knowledge about and attitudes toward sport-related concussions (SRC) in adolescents and young adults with Arabic as their first language. Decreased knowledge and unsafe attitudes toward SRC was exhibited among adolescents and young adults in Kuwait.