Welterweight
Welterweight is a weight class in combat sports. Originally the term "welterweight" was used only in boxing, but other combat sports like Muay Thai, taekwondo, and mixed martial arts also use it for their own weight division system to classify the opponents. In most sports that use it, welterweight is heavier than lightweight but lighter than middleweight.
Etymology
The first known instance of the term is from 1831, meaning "heavyweight horseman," later "boxer or wrestler of a certain weight" by 1896. This sense comes from earlier "welter" "heavyweight horseman or boxer" from 1804, possibly from "welt", meaning "to beat severely", from 15th centuryBoxing
Professional boxing
A welterweight boxer's weight is greater than, but no more than.Current world champions
Current champions| Sanctioning body | Reign began | Champion | Record | Defenses | Beaten opponents |
| WBA | July 20, 2019 |  Manny Pacquiao | 62–7–2 | 0 | 0 |
| WBC | September 29, 2019 |  Errol Spence Jr. | 26-0 | 0 | 0 |
| IBF | May 27, 2017 | Errol Spence Jr. | 26–0 | 4 | 4 |
| WBO | June 9, 2018 | Terence Crawford | 35–0 | 3 | 3 |
Current ''The Ring">The Ring (magazine)">The Ring'' world rankings
As of ,.Keys:
| Rank | Name | Record | Title |
| C | |||
| 1 | Errol Spence Jr. | 26–0 | IBF, WBC |
| 2 | Terence Crawford | 36–0 | WBO |
| 3 | Manny Pacquiao | 62–7–2 | WBA |
| 4 | Keith Thurman | 29–1 | |
| 5 | Shawn Porter | 30–3–1 | |
| 6 | Danny García | 36–2 | |
| 7 |  Yordenis Ugás | 25–4 | |
| 8 |  Kudratillo Abdukakhorov | 17–0 | |
| 9 |  Sergey Lipinets | 16–1 | |
| 10 | Mikey Garcia | 40–1 |
Longest reigning world welterweight champions
Below is a list of longest reigning welterweight champions in boxing measured by the individual's longest reign. Career total time as champion does not apply.| Name | Title reign | Title recognition | Successful defenses | Beaten opponents | Fights | |
| 1. |  Felix Trinidad | 6 years, 8 months, 14 days | IBF | 15 | 15 | |
| 2. |  Antonio Margarito | 5 years, 3 months, 28 days | WBO | 7 | 7 | |
| 3. |  José Nápoles | 4 years, 6 months, 2 days | WBA, WBC | 11 | 9 | |
| 4. | Floyd Mayweather Jr. | 4 years, 1 month, 18 days | WBC | 5 | 4 | |
| 5. | Pernell Whitaker | 4 years, 1 month, 6 days | WBC | 8 | 7 | |
| 6. |  Pipino Cuevas | 4 years and 16 days | WBA | 11 | 10 | |
| 7. | Sugar Ray Robinson | 3 years, 7 months, 19 days | World | 5 | 5 | |
| 8. | Donald Curry | 3 years, 7 months, 14 days | WBA | 7 | 7 | |
| 9. | Jack Britton | 3 years, 7 months, 13 days | World | 10 | 8 |
Amateur boxing
Olympic champions
The current Olympic male welterweight division is set at.Kickboxing
The weight division system is different in each organisation, so the kickboxing weight divisions of some international organizations vary:- International Kickboxing Federation, welterweight .
- International Sport Karate Association, welterweight.
- World Kickboxing Association, welterweight upper limit.
- In Glory promotion, a welterweight division is up to.
Mixed martial arts
Current champions
This table is not always up to date. Last updated March 15, 2019.| Organization | Reign began | Champion | Record | Defenses |
| UFC | March 3, 2019 |  Kamaru Usman | 17-1 | 2 |
| Bellator MMA | January 20, 2018 |  Douglas Lima | 20-4 | 0 |
| ONE Championship | October 25, 2019 |  Kiamrian Abbasov | 22-4 | 0 |
| British Association of Mixed Martial Arts | March 9, 2018 |  Terry Brazier | 10-1 | 0 |
| Fight Nights Global | May 19, 2017 |  Georgy Kichigin | 18-5 | 1 |
| KSW | April 14, 2018 |  Dricus du Plessis | 12-1 | 0 |
| Titan FC | June 29, 2018 |  Uroš Jurišic | 9-0 | 0 |
| ACB | August 19, 2017 | Mukhamed Berkhamov | 12-0 | 0 |
| Legacy Fighting Alliance | September 22, 2017 | James Nakashima | 8-0 | 0 |
| Cage Warriors | Oct 20, 2018 |  Ross Houston | 8-0 | 0 |
Other sports
Other sports to include a welterweight division include the following,- Muay Thai has fixed its weight division similarly to boxing.
- * International Kickboxing Federation : Muay Thai Welterweight 142.1-147 lb or 64.59-66.8 kg
- * World Muay Thai Council, welterweight range is from 140 to 147 lb or 63.5 to 66.6 kg
- * World Muay Thai Federation, the official amateur organization, fixed welterweight from for adult; the junior category is the same as adult
- The official rules of shoot boxing define welterweights as between.
- In Olympic taekwondo, welterweight falls between. At the weight classes for the Olympic games it is between.