A new species of harpacticoid copepod, Bryocamptus yohteiensis, is described. Specimens of this new species were collected from puddles on the streamside of a willow grove in Kutchan, located on the north of Mt. Yohtei in Hokkaido, Japan. The species is close to B. umiatensis Wilson, 1958 known from Alaska, Kamchatka, and Sakhalin Island. This is the seventh species of the genus reported from Japan.
