The Brazilian oceanic islands are very important for environmental studies in the South Atlantic, both for their biodiversity and geographic isolation. In this work we studied the main soils from the Trindade island, emphazising chemical and physical attributes at each different geo-environment in which they occur. Also, we aimed at increasing the knowledge on pedo-geomorphological and vegetational relationships, to obtain a preliminary view on soil variability across the great topographic variation of the island. Ten soils profiles were collected, representing the main pedo-environment, resulting from interplaying lithological, geomorphological and vegetational variations. Chemical and physical analyses were carried out for all genetic horizons. The soils diversity in Trindade is closely related to parent material and geomorphic position. Their morphological and chemical peculiarities suggest an endemic character. Overall, Trindade soils have high fertility, low degree of weathering and high amounts of avaliable P and exchangeable Ca. In the cooler, wetter, southern face of the island, narrow valleys on steep slopes show the development of the exuberant monodominant Fern forest, unique in the southern Atlantic. In these areas, organic matter accumulates, forming peat soils (histosols and histic cambisols). In altitudes higher than 400 meters, soils are generally acid and dystric, but with high P contents. In the drier northern face, dry tropical to semi-arid conditions prevail, with shallow soils, chemically richer and highly prone to erosion. There, Entisols (Litholic and Regolitic Neosols) are dominant. Due to their particularities, these soils do not well fit into the present Brazilian System of Soil Classification, requiring the creation of new classes at different hierarquical levels for the proper classification of soils from Brazilian oceanic islands.