I would like to know if the Philip who baptized the eunuch in Acts 8 is Philip the disciple or the deacon mentioned in Acts 6
It seems to be commonly held that Philip referred to here is the same as the deacon in chapter 6. The twelve disciples while they are mentioned in the book of Acts do not seem to be as much in the lime light. Peter is a major player in the first part of Acts and Paul, though not one of the twelve, in the second. The Philip spoken of in chapter 8 is clearly an evangelist in light of the ministry he performed. In Acts 21 we read of Philip the evangelist who was one of the seven deacons. And interestingly enough his residence is in Caesarea where Philip in chapter 8 ended up at the conclusion of his evangelistic tour. I would say the Philip referred to chapter 6, 8, and 21 is the same person. The deacon not the disciple.
I strongly think that Philip in Acts 8 is one of the sevens chosen in Acts 6. This thought based on the preceding narration in Acts 8:1, "except the Apostles".