The spatial and temporal distribution of organic carbon content in a surface sediment were analysed in the Pahang mangrove forest. Three transects in Kuantan mangrove, two transects in Bebar mangrove and one transect in Miang mangrove were established extending from the high intertidal site within the mangrove forest to low intertidal in front of the mangrove forest. Analysis of transects in mangrove sediments indicated that the amount of fine material and organic carbon content increases towards near the front mangrove. The highest organic carbon content occurred in fine grained sediments of the Miang (3.94 ± 0.19%) and Bebar (3.67 ± 0.28%) compared to Kuantan (2.17 ± 0.12%) mangrove areas. However in this study, there is no significant (P > 0.05) relationship between the organic carbon content within the sampling station and the seasonal changes.