santomensis, saotomensis, santomense and saotomense are Latin adjectives meaning "pertaining to, or originating in the island of São Tomé", an island of São Tomé and Príncipe. They may refer to any of the following species: * , a sea snail species * , a barnacle species * Feadillo saotomensis, an armadillo woodlice species * Mitrella saotomensis, a dove snail species * Mitromorpha saotomensis, a sea snail species * , a sea snail species * Pseudechiniscus santomensis, a water bear tardigrade species * Pseudoscilla saotomensis, a pyram species * , a fruit fly species