Jesus Christ the Righteous is one way of translating this Greek name of Jesus (Yeshua‘). The Greek word dikaios could function as an adjective or a noun here. As an adjective it would mean “righteous Jesus Christ,” as a noun it becomes the title. There is no significant difference in meaning.
Jesus Christ the Righteous in Greek:
Iēsous Christos dikaios
Strong’s Concordance numbers: 2424, 5547, 1342
Bible reference: 1 John 2:1
My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous. (1 John 2:1 KJV)
Similar names of Jesus are Holy and Righteous One and simply the Righteous One.