Tosmurlu is a village in Silifke district of Mersin Province, Turkey. At it is situated to the north of Turkish state highway and to the west of Silifke. The distance to Silifke is and to Mersin is . The population of Tosmurlu is 1072 as of 2011. According to the village web page the village was founded by the Yörüks (once nomadic Turkmans) about two centuries ago. The village economy depends on cereal agriculture. Sesame, olive, figs, grapes and honey locust are among the other crops. Some village residents work in various services in nearby Silifke.