In the King James Version it appears 3 times: Acts 11:26, Acts 26:28, and I Peter 4:16:
Acts 11:26, “and when he had found him, he brought him to Antioch. And it came about that for an entire year they met with the church, and taught considerable numbers; and the disciples were first called Christians in Antioch.”
Acts 26:28, “And Agrippa replied to Paul, “In a short time you will persuade me to become a Christian.”
1 Peter 4:16, “but if anyone suffers as a Christian, let him not feel ashamed, but in that name let him glorify God.”
The New Testament manuscripts were written in Greek, Hebrew, and Aramaic originally not English as English did not exists at this point. The Greek word for Christian found in these passages is: Christiano meaning a follower of Christos (Christ). Christos means anointed/Messiah. Mashiach is the word for Messiah in Hebrew and Paraclete is the word for Christ in Hebrew. The original disciples never had any formal “name” for themselves but were later called Christians by the Romans who occupied Antioch Greece in which the word had a very different meaning in those ancient days!
King James Statistics are at the link: Christ (555) Christian (2) Christians (1) Christs (2) Christ’s (16).
Adapted from; Answer.com