The effects of wave exposure and aspect on the zonation of supralittoral lichens were studied at 14 sites in Hong Kong. In general, increasing wave exposure raised the supralittoral zones and extended their vertical widths. A higher lichen cover in the lower zones (Zones 1 and 2)l was found with greater wave exposures, but the opposite was true for upper zones (Zones 3 and 4). Lichen diversity was greater with increased wave exposure in three out of the four zones (Zones 2–4). The effects of aspect are mainly due to the prevailing winds, which resulted in south- and east-facing shores supporting a higher cover and diversity of lichens. The distribution patterns of lichens on this subtropical seashore differed from previous studies in the temperate regions of the northern hemisphere.