The temple name 'Kengo' comes from the fact that its honzon are both Hokken no Shakyamuni and Raigei no Amida, that is, the Shakyamuni who sends a person to Saiho Gokuraku Jodo (The West Pure Land of Amida Buddha) and the Amida who receives him.
寺名の「遣迎」は、発遣（ほっけん）の釈迦と来迎の阿弥陀、つまり西方極楽浄土へ送り出す釈迦と迎え取る阿弥陀の両如来を本尊とすることによる。