Three new species of spiders are described from different provinces in Iran: Shaitan angramainyu sp. n. (Gnaphosidae) related to Sh. elchini Kovblyuk, Kastrygina et Marusik, 2013 known from Azerbaijan to Kazakhstan, Piratula raika sp. n. (Lycosidae) related to P. logunovi Omelko, Marusik et Koponen, 2011 known from Eastern Siberia, and Orthobula mikhailovi Marusik, sp. n. (Trachelidae) related to the widespread O. charitonovi (Mikhailov, 1986). This is the first record of the previously monotypic genus Shaitan Kovblyuk, Kastrygina et Marusik, 2013 in Iran, as well as its southernmost known locality. All species, including the closely related ones, are illustrated.