Literally, the name means "lover of God." Davis Bible Dictionary says it means "loved by God." Smith's Bible Dictionary, Harpers Bible Dictionary, and Holman Bible Dictionary give the meaning as "friend of God."
1. The person to whom the books of Luke and Acts were written (Luke 1:3; Acts 1:1). However, his exact identity is unknown. Some scholars believe Theophilus was a wealthy relative of Caesar; others, that he was the benefactor who paid for Luke's Doctor Degree; still others, that Theophilus was a pseudonym for someone who wanted to remain anonymous; or that Luke wanted to mask his identity with secrecy because of potential persecution.
Standing before his old friend, Luke,
Theophilus receives the book which Luke wrote
in order that Theophilus might know fact
from fiction in the life of Jesus.