Maciel Luiz Franco (born 15 March 1972 in Bandeira do Sul), also known as Maciel, is a Brazilian former professional football player.
Maciel spent seven years playing for South Korean K-League club Chunnam Dragons, from 1997 to 2003. He was awarded K-League Best Eleven for four straight seasons and won the K-League Best Defender of the Year in the 1998 season. He wanted to gain Korean citizenship before the 2002 FIFA World Cup, but abandoned his attempt eventually.