This paper provides descriptions and illustrations of two hippolytid shrimps, Eualus macilentus ($Kr{phi}yer$, 1841) and E. leptognathus (Stimpson, 1860). This is the first record of E. macilentus collected in Korean waters; it was found in the East Sea at a depth of 300 m. Eualus leptognathus has been collected previously from various locations in southern and eastern Korea, but no detailed description has been reported. This study provides a key to the six species of Eualus in Korean waters.