Kaare was a 23rd century Klingon male. By the 2270s, Kaare was serving as an ambassador for the Klingon Empire.

In 2277, Kaare was chosen to represent the Empire at diplomatic talks with the Federation to be held on the planet Pollox IV. Three Kl'ar-class vessels, commanded by Captain Kang, was ordered to escort Kaare to Pollox, which also operated under Federation protection. (TOS - Star Trek II Short Stories short story: "The Blaze of Glory")