A survey of 21 species of Salticidae newly collected from the Bidoup–Nui Ba National Park (Da Lat Plateau, south-eastern Vietnam) is presented. Eleven species are described as new: Bindax dalat sp. n. (♀), Eupoa parva sp. n. (♂♀), Hasarius dalatensis sp. n. (♂♀), Indopadilla abramovi sp. n. (♂), Maileus obscurus sp. n. (♀), Orcevia bidoup sp. n. (♂♀), Pancorius inexpectatus sp. n. (♂♀), Phintelloides rarus sp. n. (♂), Synagelides nuiba sp. n. (♂♀), Thiania subtilis sp. n. (♂♀), and Toxeus pseudohainan sp. n. (♂). Three species—Irura pengi Guo, Zhang & Zhu, 2011, Ptocasius paraweyersi Cao & Li, 2016 and Toxeus hainan Wang & Li, 2022—are recorded from Vietnam for the first time. Three new synonyms are established: Plexippus pocockii Thorell, 1895 syn. n. and Burmattus sinicus Prószyński, 1992 syn. n. with Plexippus albo-punctatus Thorell, 1895; and Pellenes gerensis Hu, 2001 syn. n. with Burmattus nitidus (Hu, 2001).