From Matt Hughes Official Website -
http://matt-hughes.com
"Matt Hughes is the 9-time World Welterweight Champion of the UFC. With a record of 43-5, Matt has traveled the world and has become a household name amongst mixed martial arts fans. He has proven time and time again that 'a country boy can survive.' However, it hasn’t always been like that for Hughes. You see, Matt comes from humble beginnings…"
As I see it he's 2 time WW Champ...
UFC Welterweight Division - 155 lbs. to 170 lbs.
UFC 31 05/04/2001 Carlos Newton DEFEATS Pat Miletich
UFC 34 11/02/2001 Matt Hughes DEFEATS Carlos Newton
UFC 36 03/22/2002 Matt Hughes DEFEATS Hayato Sakurai
UFC 38 07/13/2002 Matt Hughes DEFEATS Carlos Newton
UFC 40 11/22/2002 Matt Hughes DEFEATS Gill Castillo
UFC 42 04/25/2003 Matt Hughes DEFEATS Sean Sherk
UFC 45 11/21/2003 Matt Hughes DEFEATS Frank Trigg
UFC 46 01/31/2004 BJ Penn DEFEATS Matt Hughes
BJ Penn - stripped of the title for competing in a K-1 event
UFC 50 10/22/2004 Matt Hughes DEFEATS Georges St Pierre
UFC 52 04/16/2005 Matt Hughes DEFEATS Frank Trigg
UFC 56 11/19/2005 Matt Hughes DEFEATS Joe Riggs
UFC 63 09/23/2006 Matt Hughes DEFEATS Bj Penn
UFC 65 11/18/2006 Georges St. Pierre DEFEATS Matt Hughes
UFC 69 04/07/2007 Matt Serra DEFEATS Georges St. Pierre