Population parameters such as asymptotic length (L∞), growth coefficient (K), mortality rates (Z, F and M), exploitation level (E) and recruitment pattern of the common cuttlefish Sepia officinalis were estimated using length– frequency data from the Ivorian coastal water. Asymptotic length (L∞) was 31.50 cm and growth coefficient (K) was estimated at 0.500 year−1. Total mortality (Z) for S. officinalis was 1.32 year−1, while natural mortality (M) and fishing mortality (F) were 0.94 and 0.38 year−1, respectively. The growth performance index (φ‟) was 2.69 and the exponent “b” of the length–weight relationship was 2.77 during the study period. The asymptotic wet weight estimated from length– weight relationship was 2869.57 g. Exploitation level (E) of Sepia officinalis was 0.29. The recruitment pattern was continuous with one major peak in the months of July–August. The exploitation level (0.29) and lower fishing mortality (0.38 year−1) indicate that the common cuttlefish is under-exploited from Ivorian coastal waters.