Alexander

A man, in the time of the New Testament · named in 2 verses

the name means man-defender Strong's Lexicon

Alexander, along with Hymenaeus, was an opponent of Paul's teaching and was handed over to Satan by Paul.

From Easton's Bible Dictionary

Man-defender. (1.) A relative of Annas the high priest, present when Peter and John were examined before the Sanhedrim (Acts 4:6).

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

First named at 1 Timothy 1:20.

1 Timothy 1:20 Among them are Hymenaeus and Alexander, whom I have handed over to Satan to be taught not to blaspheme.
2 Timothy 4:14 Alexander the coppersmith did great harm to me. The Lord will repay him according to his deeds.