Following the name of the champion(s): Indicates the number of times the competitor has held that title at that point.
[...]
Indicates a gap in the listing where title changes are not known.
<
Title was held or changed hands no later than this. In these cases, it is known that a competitor held the title at a certain time but not when he/she won it.
@
Order uncertain. Different titleholders may be known for the same year, for example, but it is not known who held the title before whom.
#
Unofficial or disputable claims. These are usually matches that certainly took place, but where there is doubt that the competitor shown should be recognized as a true title holder. These listings are also italicized.
International Boxing Federation
World Welterweight Title (as of 2025-09-13)
* Bolded letters in the competitor's name, if any, indicate the surname/family name.
Donald Curry
1984-02-04
Atlantic City, NJ, USA
Defeats Marlon Starling.
Lloyd Honeyghan
1986-09-27
Atlantic City, NJ, USA
Stripped of the title on 87-10-28 when IBF refuses to sanction Honeyghan's defense against Jorge Vaca.
Simon Brown
1988-04-23
Berck, FRA
Defeats Tyrone Trice; vacates on 91-05-07 due to IBF's decision to sanction bouts in apartheid South Africa.
Maurice Blocker
1991-10-04
Atlantic City, NJ, USA
Defeats Glenwood Brown.
Félix Trinidad
1993-06-19
San Diego, CA, USA
Vacates on 00-03-10 to move up to junior middleweight class.
Vernon Forrest
2001-05-12
New York, NY, USA
Defeats Raul Frank; stripped of the title on 01-12-11 for refusing to fight mandatory challenger Michele Piccirillo.
Michele Piccirillo
2002-04-13
Campione d'Italia, ITA
Defeats Cory Spinks.
Cory Spinks
2003-03-22
Campione d'Italia, ITA
Zab Judah
2005-02-05
St. Louis, MO, USA
Floyd Mayweather Jr.
2006-04-08
Las Vegas, NV, USA
Also wins the vacant IBO World Title; vacates IBF title on 06-06-20.
Kermit Cintrón
2006-10-28
W. Palm Beach, FL, USA
Defeats Mark Suárez.
Antonio Margarito
2008-04-12
Atlantic City, NJ, USA
Vacates on 08-07-25 after refusing to fight mandatory challenger Joshua Clottey.
Joshua Clottey
2008-08-02
Las Vegas, NV, USA
Defeats Zab Judah; vacates on 09-04-16 after WBO champion Miguel Cotto fails to sign his contract in time for the IBF to approve their unification match.
Isaac Hlatshwayo
2009-08-01
Uncasville, CT, USA
Defeats Delvin Rodríguez.
Jan Zaveck
2009-12-11
Johannesburg, RSA
Andre Berto
2011-09-03
Biloxi, MS, USA
Vacates on 11-11-08 after HBO indicates a lack of interest in him facing mandatory challenger Randall Bailey on their network and instead pursues a rematch against Victor Ortiz.
WBO world champion, wins WBC, WBA, and IBF world titles to become the undisputed champion; stripped of the title on 23-11-09 when Crawford refuses to fight interim champion Jaron Ennis due to the rematch clause exercised by Spence.
Jaron Ennis
2023-11-09
Interim champion since defeatiing Karen Chukhadzhian on 23-01-07; status promoted; also wins WBA world title on 25-04-02; vacates on 25-07-07 upon moving up to the junior middleweight class.
