The reaction of 1- and 2-naphthols 1 and 2 with a variety of thiols 3 in the presence of trifluoromethanesulfonic acid afforded naphthyl alkyl and aryl sulfides 4 and 5, respectively, in good yields. Similarly naphthyl bis(alkyl) or bis(aryl) sulfides 10-13 were prepared from the corresponding dihydroynaphthalenes 6-9.