Sahuagin is the language of the various sahuagin tribes of the Thunder Sea. Many merchants and sailors who live or work in Sharn pick up some amount of the Sahuagin language due to the proximity of sahuagin settlements beyond the Straits of Shargon. In addition, many sailors that travel from Sharn to Stormreach in Xen'drik are said to at least know how to curse in Sahuagin, if not speak it.