This study examined relationships between authentic leadership and safety climateamong 463 seafarers sailing on 23 merchant vessels in the international shipping industry. A multiple regression analysis was performed, where authentic leadership made a statistically significant contribution to explaining variance in safety climate, controlling for age, rank on board, and social desirable responding. Adding an interaction between authentic leadership and rank on board (officers vs. crew) to the multiple regression analysis did not add to the amount of explained variance (R 2 = .38). Implications for leadership training and safety in shipping are discussed.